Lucy is running a test on her car engine that requires her car to be moving. The tolerance for the variation in her car’s speed, in miles/hour, while running the test is given by the inequality |x − 60| ≤ 3. Assume x is the actual speed of the car at any time during the test

Answers

Answer 1

The car's speed must be within the range of 57 to 63 miles per hour to stay within the specified tolerance.

To determine the range of speeds Lucy's car can be moving within the given tolerance, we can analyze the inequality |x - 60| ≤ 3, where x is the actual speed of the car in miles per hour.

Step 1: Break the absolute value inequality into two separate inequalities:
(x - 60) ≤ 3 and -(x - 60) ≤ 3

Step 2: Solve each inequality:
For (x - 60) ≤ 3:
x ≤ 60 + 3
x ≤ 63

For -(x - 60) ≤ 3:
-x + 60 ≤ 3
-x ≤ -57
x ≥ 57

Step 3: Combine the solutions to get the range of allowable speeds:
57 ≤ x ≤ 63

So, when Lucy is running the test on her car engine, the car's speed must be within the range of 57 to 63 miles per hour to stay within the specified tolerance.

To know more about range refer here:

https://brainly.com/question/28135761?#

SPJ11


Related Questions

The temperature at sunrise was T degrees. By noon the temperature had tripled. By sunset, the temperature was only half of what the


temperature was at noon.


Which expression shows the temperature at sunset in terms of T?


OA (T+3) = Ź


(T+3)


2


Ос. 37 = 5


1 / 2


3. 37 를


D

Answers

The expression that shows the temperature at sunset in terms of T is 3T/2.

Let's call the temperature at sunrise T. According to the problem statement, the temperature tripled from sunrise to noon, so the temperature at noon is 3T.

Then, from noon to sunset, the temperature halved, so the temperature at sunset is (1/2) of the temperature at noon, or (1/2)(3T), which simplifies to 3T/2. Therefore, the expression that shows the temperature at sunset in terms of T is 3T/2.

To know more about mathematical expressions, visit,

https://brainly.com/question/1859113

#SPJ4

If AB is tangent to circle P at B, find Measure of angle 1

Answers

To find the measure of angle 1 when AB is tangent to circle P at point B, we must consider some properties of tangents and circles.

A tangent line to a circle is a line that touches the circle at exactly one point, known as the point of tangency. In this case, line AB is tangent to circle P at point B. A crucial property of tangents is that they are perpendicular to the radius of the circle at the point of tangency. Therefore, the radius PB of circle P is perpendicular to tangent AB at point B.

Now, let's examine angle 1. If angle 1 is the angle formed by the tangent AB and the radius PB at point B, then it is a right angle due to the aforementioned property. In this case, the measure of angle 1 is 90 degrees.

However, if angle 1 is not directly formed by the tangent and radius, more information is needed to determine its measure. For example, if angle 1 is an angle inside the circle, you would need to know the measure of other angles or lengths of chords within the circle to calculate it.

In summary, if angle 1 is formed by tangent AB and radius PB at point B, its measure is 90 degrees because tangents are perpendicular to the radius at the point of tangency. If angle 1 is not formed by the tangent and radius, additional information is required to determine its measure.

To know more about tangents refer here

https://brainly.com/question/10053881#

#SPJ11

Goldilocks walked into her kitchen to find that a bear had eaten her tasty can of soup. All that was left was the label below that used to completely cover the sides of the can (without any overlap). What was the volume of the can of soup that the bear ate? The label is 22 in. (top) by 9 in. (side).

Answers

The volume of the can of soup that the bear ate was approximately 4644.64 cubic inches.

To solve this problem, we need to make some assumptions about the can of soup. Let's assume that the can is cylindrical and that it is completely filled with soup. We also need to assume that the label covered the entire surface area of the can without any overlap.

The label is 22 inches tall and 9 inches wide, so it covered a total surface area of 22 x 9 = 198 square inches. Since the label completely covered the sides of the can without any overlap, we can use this surface area to find the surface area of the can itself.

The surface area of a cylinder is given by the formula A = 2πrh + 2πr², where r is the radius of the base of the cylinder, and h is the height of the cylinder. In this case, we know that the height of the cylinder is 22 inches (the height of the label), and the circumference of the base of the cylinder is 9 inches (the width of the label).

Using these values, we can solve for the radius of the cylinder:

9 = 2πr
r = 4.53 inches

Now we can use the formula for the surface area of a cylinder to solve for the volume of the can:

A = 2πrh + 2πr²
198 = 2π(22)(4.53) + 2π(4.53)²
198 = 634.26
A = πr²h
V = A x h/3
V = 634.26 x 22/3
V ≈ 4644.64 cubic inches

To know more about volume, refer to the link below:

https://brainly.com/question/23687218#

#SPJ11

12. Higher Order Thinking Q'R'S' T' is the image
of QRST after a dilation with center at the origin.
a. Find the scale factor.
b. Find the area of each parallelogram. What is
the relationship between the areas?

Answers

Considering the figures the scale factor is 1/4

Area of parallelogram QRST

= 9 square units

Area of parallelogram Q'R'S'T'

= 144 square units

How to find the scale factor of the parallelogram

The scale factor is solved using a reference side say QR and Q'R'

with QR = 12 and Q'R' = 3

the relationship is

QR * scale factor = Q'R'

12 * scale factor = 3

scale factor = 3/12 = 1/4

Area of parallelogram QRST

= base * height

= 3 * 3

= 9 square units

Area of parallelogram Q'R'S'T'

= 12 * 12

= 144 square units

The relationship between the areas are

9 square units * ( scale factor)² = 144

Learn more about scale factor at

https://brainly.com/question/25722260

#SPJ1

How many triangles are represented in a=120 degrees a=250 b=195

Answers

To determine how many triangles are represented by the angles a=120 degrees, a=250 degrees, and b=195 degrees, we need to use the triangle inequality theorem. This theorem states that the sum of the lengths of any two sides of a triangle must be greater than the length of the third side.

First, we need to determine which angle corresponds to which side. Let's assume that angle a is opposite to the longest side, and angle b is opposite to the shortest side. Therefore, we have: a = 250 degrees (longest side) a = 120 degrees b = 195 degrees (shortest side) Next, we need to use the triangle inequality theorem to determine which combinations of sides can form a triangle. For any two sides a and b, the third side c must satisfy the following condition: c < a + b Using this condition, we can determine the valid combinations of sides: - a + b > c: This is always true, since a and b are the longest and shortest sides, respectively. - a + c > b: This is true for all values of c, since a is the longest side. - b + c > a: This is true only when c > a - b.

Substituting the given values, we get: c > a - b c > 250 - 195 c > 55 Therefore, any side c that is greater than 55 can form a triangle with sides a and b. We can use this condition to count the number of valid triangles: - If c = 56, then we have one triangle. - If c = 57, then we have two triangles (c can be either adjacent side). - If c = 58, then we have three triangles (c can be any of the three sides). Continuing this pattern, we can count the number of triangles for each value of c: c = 56: 1 triangle c = 57: 2 triangles c = 58: 3 triangles c = 59: 4 triangles c = 60: 5 triangles c = 61: 6 triangles c = 62: 7 triangles c = 63: 8 triangles c = 64: 9 triangles c = 65: 10 triangles c = 66: 11 triangles c = 67: 12 triangles c = 68: 13 triangles c = 69: 14 triangles c = 70: 15 triangles c > 70: 16 triangles (since all three sides can form a triangle) Therefore, there are 16 possible triangles that can be formed with the given angles and side lengths.

For more questions like triangles visit the link below:

https://brainly.com/question/23907841

#SPJ11

Frank has four different credit cards, the balances and interest information of which are outlined in the table below. he would like to consolidate his credit cards to a single credit card with an apr of 18% and pay off the balance in 24 months. what will his monthly credit card payment be? credit card balance apr a $2,380 19% b $4,500 15% c $1,580 17.50% d $900 21% a. $390.00 b. $462.91 c. $467.29 d. $52.00 please select the best answer from the choices provided a b c d

Answers

Frank's monthly credit card payment for consolidating his credit cards will be $467.29.

Option C is the correct answer.

We have,

To calculate the monthly credit card payment for consolidating Frank's credit cards, we can use the formula for the monthly payment on a loan:

[tex]M = P (r (1 + r)^n) / ((1 + r)^n - 1),[/tex]

where M is the monthly payment, P is the total loan amount (sum of all credit card balances), r is the monthly interest rate, and n is the number of months.

First, let's calculate the total loan amount:

Total loan amount = $2,380 + $4,500 + $1,580 + $900 = $9,360.

Next, let's calculate the monthly interest rate:

Monthly interest rate = APR / 12 = 18% / 12 = 1.5%.

Now, let's calculate the monthly payment using the formula:

[tex]M = $9,360 \times (0.015 (1 + 0.015)^{24}) / ((1 + 0.015)^{24} - 1).[/tex]

Using a calculator, we can compute the value of M:

M ≈ $467.286.

Rounding to the nearest cent,

Frank's monthly credit card payment for consolidating his credit cards will be $467.29.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ12

Ellus


These prisms are similar. Find the surface


area of the larger prism in decimal form.


5 m


7 m


Surface Area


90 m2


Surface Area = [? ] m2


please helppp. :)

Answers

If two prisms are similar, their corresponding dimensions are proportional.

Let's assume that the ratio of the corresponding lengths of the smaller prism to the larger prism is k:1, where k is a constant.

Then the ratio of the corresponding surface areas of the smaller prism to the larger prism is [tex](k^2):1[/tex], because the surface area of a prism is proportional to the square of its length.

In this problem, the surface area of the smaller prism is not given.

However, we can find the ratio of the corresponding lengths of the smaller prism to the larger prism using the fact that they are similar.

The height of the smaller prism can be found as follows:

[tex]7/5 = h/L[/tex]

where h is the height of the smaller prism and L is the length of the larger prism.

Solving for h, we get:

[tex]h = (7/5)L[/tex]

The ratio of the corresponding lengths of the smaller prism to the larger prism is 7:5.

The ratio of the surface areas of the smaller prism to the larger prism is:

[tex](7/5)^2 : 1 = 49/25 : 1[/tex]

We know that the surface area of the larger prism is [tex]90 m^2.[/tex]

Let's denote the surface area of the smaller prism by A. Then we can set up an equation:

(49/25)A = 90

Solving for A, we get:

A = (25/49) * 90 = 45/7 ≈ 6.4

The surface area of the smaller prism is approximately [tex]6.4 m^2.[/tex]

(Note: The units of the surface area are not provided for the smaller prism, so I assumed the same units as the larger prism.

To know more about area refer here

https://brainly.com/question/14759304#

#SPJ11

So far you have completed 816 miles
which is 48% of the trail.

Answers

Assuming that the trail is a total of "x" miles, we can set up the following equation to solve for "x":

816 = 0.48x

To solve for "x", we can divide both sides by 0.48:

x = 1700

Therefore, the total length of the trail is 1700 miles.

what is the percent of 11/20

Answers

Answer: 55%

Step-by-step explanation:

To find the percentage of 11/20, we can use the following formula:

Percentage = (Numerator ÷ Denominator) × 100

Substituting the values from 11/20 into the formula, we get:

Percentage = (11 ÷ 20) × 100

Percentage = 0.55 × 100

Percentage = 55%

Therefore, the percentage of 11/20 is 55%.

Answer:

Solution: 11/20 as a percent is 55%

Step-by-step explanation:

First, convert the fraction into a decimal by dividing the numerator by the denominator:

11/20 = 0.55

If we multiply the decimal by 100, we will get the percentage:

00.5 * 100 = 55

We can see that 11/20 is percentage is 55.

In triangle ABC, A is (0,0), B is (0,,3) and C is (3,0). What type of triangle is ABC? SELECT ALL THAT APPLY

Answers

The triangle has two sides with equal lengths (AB and AC) and one side with a different length (BC). This makes it an isosceles triangle.

How to find the type of triangle

Triangle ABC has vertices A(0,0), B(0,3), and C(3,0).

To determine the type of triangle, we can find the lengths of the sides using the distance formula:

AB = sqrt((0-0)^2 + (3-0)^2) = sqrt(0 + 9) = 3

BC = sqrt((3-0)^2 + (0-3)^2) = sqrt(9 + 9) = sqrt(18) = 3√2

AC = sqrt((3-0)^2 + (0-0)^2) = sqrt(9 + 0) = 3

The triangle has two sides with equal lengths (AB and AC) and one side with a different length (BC). This makes it an isosceles triangle.

Read more about triangles here:

https://brainly.com/question/1058720

#SPJ1

Jyllina created this box plot representing the number of inches of snow that fell this winter in different nearby cities
Snowfall Summary
4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50
Number of inches
(a) What was the greatest amount of snowfall in any of the cities?
(b) In which quarter is the data most concentrated? Explain how you know. (c) In which quarter is the data most spread out? Explain how you know

Answers

(a) The greatest amount of snowfall in any of the cities = 50 inches.

(b) The data is most concentrated in the second quarter (Q₂), ranging from 6 inches to 20 inches.

(c) The data is most spread out in the fourth quarter (Q₄), ranging from 32 inches to 50 inches.

What is a Box plot:

A box plot is a type of graphical representation that summarizes the distribution of a dataset based on the five-number summary: the minimum value, the first quartile (Q1), the median, the third quartile (Q3), and the maximum value.

A box plot consists of a rectangular box, which spans from Q1 to Q3, with a vertical line inside it representing the median. The length of the box represents the interquartile range (IQR), which is the range between Q1 and Q3.

Whiskers, which are lines extending from the top and bottom of the box, indicate the range of the dataset outside of the IQR.  

Here we have

Jyllina created this box plot representing the number of inches of snow that fell this winter in different nearby cities

The data ranges from 4 to 50 inches

4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50

(a) The greatest amount of snowfall in any of the cities will equal the highest value which is 50 inches.

(b) The data is most concentrated in the second quarter (Q₂), which ranges from 6 inches to 20 inches.

This can be inferred from the fact that the box plot shows the smallest range between the minimum and maximum values, as well as the smallest size of the box, which represents the interquartile range (IQR).

(c) The data is most spread out in the fourth quarter (Q₄), which ranges from 32 inches to 50 inches.

This can be inferred from the fact that the box plot shows the largest range between the minimum and maximum values, as well as the largest size of the box, which represents the IQR.

Additionally, the whiskers, which represent the range of values outside the IQR, are also the longest in this quarter, indicating that there are more extreme values in this range compared to the other quarters.

Therefore,

(a) The greatest amount of snowfall in any of the cities = 50 inches.

(b) The data is most concentrated in the second quarter (Q₂), ranging from 6 inches to 20 inches.

(c) The data is most spread out in the fourth quarter (Q₄), ranging from 32 inches to 50 inches.

Learn more about Box Plot at

https://brainly.com/question/29286194

#SPJ4

Complete Question:

Hillary used her credit card to buy a $804 laptop, which she paid off by making identical monthly payments for two and a half years. Over the six years that she kept the laptop, it cost her an average of $0. 27 of electricity per day. Hillary's credit card has an APR of 11. 27%, compounded monthly, and she made no other purchases with her credit card until she had paid off the laptop. What percentage of the lifetime cost of the laptop was interest? Assume that there were two leap years over the period that Hillary kept the laptop and round all dollar values to the nearest cent)​

Answers

Percentage of lifetime cost that was interest = $407.

Let's begin by finding the monthly payment that Hillary made to pay off her laptop over two and a half years.

If she paid off the $804 balance with identical monthly payments, then the total amount she paid is equal to the balance plus the interest:

Total amount paid = balance + interest

We can use the formula for the present value of an annuity to solve for the monthly payment, where PV is the present value (in this case, $804), r is the monthly interest rate (which we can find from the APR), n is the total number of payments (30 months), and PMT is the monthly payment:

PV = PMT * (1 - (1 + r)^(-n)) / r

We can solve this equation for PMT:

PMT = PV * r / (1 - (1 + r)^(-n))

The monthly interest rate is the annual percentage rate divided by 12, and the number of payments is the number of years times 12:

r = 0.1127 / 12 = 0.009391667

n = 2.5 * 12 = 30

Using these values, we get:

PMT = 804 * 0.009391667 / (1 - (1 + 0.009391667)^(-30)) = $33.00

So Hillary made 30 monthly payments of $33.00 to pay off her laptop.

Next, we can calculate the cost of electricity over six years. There are 365 days in a year, and 2 leap years in the six-year period, for a total of 6*365+2 = 2192 days.

At $0.27 per day, the total cost of electricity is:

2192 * $0.27 = $592.64

Now we can calculate the total cost of the laptop over six years.

Hillary paid $33.00 per month for 30 months, or a total of 30 * $33.00 = $990.00. She also paid $592.64 for electricity. Therefore, the total cost of the laptop is:

$990.00 + $592.64 = $1582.64

The interest she paid on her credit card is the difference between the total amount she paid and the cost of the laptop:

Interest = Total amount paid - Cost of laptop

Interest = $990.00 + interest on $804 balance - $804 - $592.64

Simplifying this expression, we get:

Interest = $185.36 + interest on $804 balance

To find the interest on the $804 balance, we can use the formula for compound interest, where P is the principal (in this case, $804), r is the annual interest rate (11.27%), and t is the time in years (2.5 years):

A = P*(1 + r/n)^(n*t)

Here, we can set the number of compounding periods per year, n, to 12 since the interest is compounded monthly. Substituting the given values, we get:

A = $804*(1 + 0.1127/12)^(12*2.5) = $1026.12

So the interest on the $804 balance is:

Interest on $804 balance = $1026.12 - $804 = $222.12

Plugging this value into our expression for Interest, we get:

Interest = $185.36 + $222.12 = $407.48

Finally, we can find the percentage of the lifetime cost of the laptop that was interest:

Percentage of lifetime cost that was interest = Interest / Total cost of laptop * 100%

Percentage of lifetime cost that was interest = $407.

To know more about simple interest refer here:

https://brainly.com/question/28655726?#

SPJ11

You doing the practice 1

Answers

Using the intersection of sets we find that A ∩ B = {1, 3}

What is a set?

A set is a collection of well ordered items.

Givent hat set A = {x| x is an od number greater than 0 and less than 10} and set B = {1, 2, 3, 4}, we desire to find A ∩ B. We proceed as follows.

First since set A = {x| x is an odd number greater than 0 and less than 10}, its elements are A = {1, 3, 5, 7, 9}

Also, set B =  {1, 2, 3, 4}

Since we require A ∩ B which is the intersection of both sets and is  the elements that both sets have in common. Since both sets have element 1 and 3 in common, we have that

A ∩ B = {1, 3}

So, A ∩ B = {1, 3}

Learn more about sets here:

https://brainly.com/question/28278437

#SPJ1

The dotted line is the perpendicular bisector of side AB. The distance between points E and A is 7 units. What is the distance between points E and B? Explain or show your reasoning

Answers

The distance between points E and B is (2/3)*AB, or (2/3)*(7+x) units.

Since the dotted line is the perpendicular bisector of side AB, it means that it cuts the line AB into two equal halves. Thus, the distance between points E and the dotted line is equal to the distance between point A and the dotted line.

We know that the distance between points E and A is 7 units, and since the dotted line bisects AB, the distance between point A and the dotted line is equal to the distance between point B and the dotted line. Let's call this distance 'x'.

Therefore, we have two equal distances (7 units and 'x') that add up to the length of AB. This means that:

AB = 7 units + x

However, we also know that the dotted line is the perpendicular bisector of AB, meaning that it forms right angles with both A and B. This creates two right-angled triangles, AED and BED, where DE is the perpendicular line from point E to AB.

Using Pythagoras' theorem, we can find the length of DE in terms of 'x':

(DE)² + (AE)² = (AD)²

(DE)² + (7)² = (AB/2)²

(DE)² + 49 = (AB²)/4

(DE)² = (AB²)/4 - 49

(DE)² = (AB² - 196)/4

(DE)² = (x²)/4

DE = x/2

Therefore, the distance between points E and B is equal to the length of DE plus the distance between point B and the dotted line, which is also equal to 'x'. Therefore, the distance between points E and B is:

EB = (x/2) + x = 1.5x

We can substitute this into the equation we found earlier:

AB = 7 units + x

AB = 7 units + (2/3)*EB

Know more about distance here:

https://brainly.com/question/15172156

#SPJ11

Gloria had a rectangular garden plot last year with an area of 60 square feet. This year, Gloria's plot is 1 foot wider and 3 feet shorter than last year's garden, but it has the same area. What were the dimensions of the garden last year?

Answers

The dimensions of the garden last year were 15 feet by 4 feet.

How to solve for the dimension

Let the length of the garden last year be L feet, and the width be W feet. We are given that the area of the garden last year was 60 square feet:

L * W = 60

This year, the garden is 1 foot wider and 3 feet shorter than last year's garden:

Length: L - 3

Width: W + 1

The area of the garden remains the same:

(L - 3) * (W + 1) = 60

Now we have two equations with two variables:

L * W = 60

(L - 3) * (W + 1) = 60

We can solve this system of equations using substitution or elimination. Let's use substitution. From equation 1, we can write L as:

L = 60 / W

Now substitute this expression for L in equation 2:

(60 / W - 3) * (W + 1) = 60

Simplify and solve for W:

60 + 60 / W - 3W - 3 = 60

Combine like terms:

60 / W - 3W = 3

Multiply both sides by W to eliminate the fraction:

60 - 3W² = 3W

Move all terms to one side:

3W² + 3W - 60 = 0

Divide the equation by 3:

W² + W - 20 = 0

Factor the quadratic equation:

(W + 5)(W - 4) = 0

The possible values for W are -5 and 4. However, since width cannot be negative, W must be 4 feet. Now, use the expression for L to find the length:

L = 60 / W = 60 / 4 = 15 feet

So, the dimensions of the garden last year were 15 feet by 4 feet.

Read more on dimensions here:https://brainly.com/question/26740257

#SPJ1

When a figure is translated on the coordinate plane you should add or subtract x and y? Is this statement true or false?

Answers

Answer: True

Step-by-step explanation:

True, when translating a figure on a coordinate plane the numbers within the coordinate need to change in order for there to be a new point.

6 Evaluate without using calculators. -4(-2)+(-12)÷(+3)+-20+(+4)+(-6 ​

Answers

Answer:

Its 12

Step-by-step explanation:

1.   Following PEMDAS, we first solve the equation inside the parentheses.

       -4(-2) = 8

       -12 ÷ 3 = -4

       -20 + 4 = -16

2.    Now, we have the following expression:

       8 + (-4) + (-16)

 3.  Again, following PEMDAS, we solve the equation inside the parentheses first.

       8 + (-4) + (-16) = 8 - 4 - 16

  4. Finally, we solve the equation from left to right.

       8 - 4 - 16 = 8 - (4 + 16)

       8 - (20) = -12

Therefore, the value of the expression is -12.

Consider the following 8 numbers, where one labelled

x

is unknown. 32

,



46

,



46

,



x

,



35

,



9

,



4

,



38



Given that the range of the numbers is 55, work out 2 values of

x

Answers

Two possible values of x are 10 and 40.

To find two possible values of x, we need to first determine the highest and lowest numbers in the set.

Highest number: 46
Lowest number: 4

To get a range of 55, we need the highest number minus the lowest number to equal 55.

46 - 4 = 42

But we know that there are 8 numbers in the set, so the range must be spread out over those 8 numbers. To get an idea of how much each number should increase, we can divide 42 by 7 (the number of gaps between the numbers) to get an average increase of 6.

Now we can use this average increase to find two possible values of x.

1) If x is 6 more than the lowest number (4 + 6 = 10), then the set becomes:

4, 9, 10, 32, 35, 38, 46, 46

And the range is:

46 - 4 = 42

2) If x is 6 less than the highest number (46 - 6 = 40), then the set becomes:

4, 9, 35, 38, 40, 46, 46, 32

And the range is:

46 - 4 = 42

Therefore, two possible values of x are 10 and 40.

To know more about range refer here:

https://brainly.com/question/28135761?#

SPJ11

The visitors to a certain website were questioned about their favorite soups.

If 180 people were surveyed, how many more people voted for split pea soup than for potato soup?

Answers

Answer:

.15(180) - .10(180) = .05(180) = 9

9 more people voted for split pea soup than for potato soup.

During a sale, a store offered a 20% discount on a stereo system that originally sold for $720. After the sale, the discounted price of the stereo system was marked up by 20%. What was the price of the stereo system after the markup? Round to the nearest cent.

Answers

The price of the stereo system after the discount and markup is $691.20.

How to determine the markup:

The markup price represents the price after adding a percentage of the discounted price.

The markup can be determined using the markup factor, which increases 100% by the markup percentage.

The discount offered on the stereo system = 20%

Original sales price of the system = $720

Discount factor = 0.8 (1 - 0.2)

Discounted price = $576 ($720 x 0.8)

Markup percentage after the discount = 20%

Markup factor = 1.2 (1 + 0.2)

Marked up price = $691.20 ($576 x 1.2)

Learn more about the markup at https://brainly.com/question/1153322.

#SPJ1

Blank 1 or B =

Blank 2 or P =

Blank 3 or l =

Answers

The part of the surface area equation are

Part 1 = B = Base areaPart 2 = P = Perimeter of basePart 3 = l = Height of pyramid

Completing the part of the surface area equation

From the question, we have the following parameters that can be used in our computation:

SA = B + 1/2Pl

In the equation, we have

Part 1 = B

Part 2 = P

Part 3 = l

When the above parts are labelled, we have

Part 1 = B = Base area

Part 2 = P = Perimeter of base

Part 3 = l = Height of pyramid

Read mroe about surface area at

https://brainly.com/question/26403859

#SPJ1

Write 7.725666118 as a percentage
please show the method too.

Answers

The number written as a percentage is:

772.5666118%

How to write any number as a percentage?

To do this, just multiply the number by 100%.

For example, for any number A, the percentage form of A is:

p = A*100%

Here the number is  7.725666118, then the percentage form of this number will be:

N =  7.725666118*100% = 772.5666118%

That is the number as a percentage.

Learn more about percentages at:

https://brainly.com/question/843074

#SPJ1

find the coordinates of p so that p partitions the segment of AB in the ratio 7 to 2 if A( -5,4) and B( -8,-2)

Answers

The coordinates of p so that p partitions the segment of AB in the ratio 7 to 2 if A( -5,4) and B( -8,-2) is P(x, y) = [-22/3, -2/3].

How to determine the coordinates of point P?

In this scenario, line ratio would be used to determine the coordinates of the point P on the directed line segment that partitions the segment into a ratio of 1 to 4.

In Mathematics and Geometry, line ratio can be used to determine the coordinates of P and this is modeled by this mathematical equation:

P(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

By substituting the given parameters into the formula for line ratio, we have;

P(x, y) = [(mx₂ + nx₁)/(m + n)],  [(my₂ + ny₁)/(m + n)]

P(x, y) = [(7(-8) + 2(-5))/(7 + 2)],  [(7(-2) + 2(4))/(7 + 2)]

P(x, y) = [(-56 - 10)/(9)],  [(-14 + 8)/9]

P(x, y) = [-66/9],  [(-6)/(9)]

P(x, y) = [-22/3, -2/3]

Read more on line ratio here: brainly.com/question/14457392

#SPJ1

Express the volume of the part of the ball p < 5 that lies between the cones т/4 and
т/3.

Answers

The volume of the part of the ball p < 5 that lies between the cones φ = π/4 and φ = π/3 is 0.

To express the volume of the part of the ball p < 5 that lies between the cones φ = π/4 and φ = π/3, we first need to determine the limits of integration in spherical coordinates.
Since the ball has radius 5, we know that the limits on ρ are 0 and 5.

For the limits on φ, we know that the region of interest lies between the cones φ = π/4 and φ = π/3, which correspond to angles of 45 degrees and 60 degrees, respectively.

Therefore, the limits on φ are π/4 and π/3.
For the limits on θ, we know that the region of interest extends all the way around the ball, so the limits on θ are 0 and 2π.
Using these limits, we can express the volume of the region of interest as:
V = ∫∫∫E ρ sin φ dρ dθ dφ
where,

E is the region of interest defined by the limits on ρ, θ, and φ that we just determined.
Substituting the limits and the volume element in spherical coordinates,
Integrating with respect to θ, we have:
V = 0
Therefore, the volume of the part of the ball p < 5 that lies between the cones φ = π/4 and φ = π/3 is 0.

This result suggests that there may be an error in the problem statement or that the region of interest is not well-defined.

For similar questions on volume  :

https://brainly.com/question/15923756

#SPJ11

You are choosing between two different cheese wedges at the grocery store. Assume both


wedges are triangular prisms with bases that are isosceles triangles. The first wedge has a base


that is 2. 5 in. Wide and a height of 4. 5 in. , with the entire wedge being 3 in thick. The second


wedge has a base that is 3 in, wide and a height of 4 in. , with the entire wedge being 3. 5 in.


thick. Which wedge has a greater volume of cheese, and by how much?


The first wedge by 6. 375 cubic inches


The first wedge by 12. 75 cubic inches


The second wedge by 8. 25 cubic inches


The second wedge by 4. 125 cubic inches

Answers

The second wedge has a greater volume by 4.125 cubic inches. Therefore, the correct option is 4.

To determine which cheese wedge has a greater volume, you need to calculate the volume of each triangular prism using the given dimensions.

For the first wedge:

1. Calculate the area of the base (isosceles triangle):

(base x height) / 2 = (2.5 in x 4.5 in) / 2 = 5.625 square inches

2. Calculate the volume of the prism:

base area x thickness = 5.625 sq in x 3 in = 16.875 cubic inches

For the second wedge:

1. Calculate the area of the base (isosceles triangle):

(base x height) / 2 = (3 in x 4 in) / 2 = 6 square inches

2. Calculate the volume of the prism:

base area x thickness = 6 sq in x 3.5 in = 21 cubic inches

To find which wedge has a greater volume and by how much, subtract the smaller volume from the larger volume:

21 cu in - 16.875 cu in = 4.125 cu in.

Therefore, the correct answer is option 4: The second wedge has a greater volume by 4.125 cubic inches.

Learn more about Triangular prism:

https://brainly.com/question/31637705

#SPJ11


to increase strength and/or muscle mass, weight trainers will try different approaches. one approach is to apply an electrical impulse through a
muscle as the person is lifting a weight. a researcher wants to determine if adding this electrical impulse increases the amount of weight a person
can lift. to conduct his research, he selects one hundred people, and randomly divides them into two groups. one group wears a device that
sends an electrical impulse through the muscle used to repeatedly lift a 5 pound weight. the other group lifts the same weight without the electrical
impulse. the researcher counts the number of repetitions until the subjects can no longer lift the weight. is this an example of an observational
study or an experiment?

Answers

This is an example of an experiment. In an experiment, researchers manipulate the independent variable (in this case, the presence or absence of an electrical impulse) to determine its effect on the dependent variable (the number of repetitions the subjects can lift a weight).

The researcher randomly assigned subjects to either receive the electrical impulse or not, which is a key feature of experimental design.

By doing so, the researcher can ensure that any differences observed between the two groups are due to the manipulation of the independent variable, rather than any pre-existing differences between the groups.

In contrast, an observational study merely observes existing characteristics or behaviors of a population, without any manipulation or control of variables.

To know more about experimental design, refer here:

https://brainly.com/question/28145500#

#SPJ11

True or false kites are never rhombuses

Answers

Answer:

Step-by-step explanation:

false i think

Answer:

True

Step-by-step explanation:

Charles draws △PQR, with m∠QPR = 130°, m∠PQR = 30°, and m∠PRQ = 20°.
Which triangle represents Charles’s triangle??

Answers

Answer:

Please look at the picture provided to see the correct triangle because each figure has no a,b, or c. Thanks

Solve the system of linear equations by elimination

4x+6y=48
3x + 7y=51

Answers

To solve the system of linear equations by elimination, we need to eliminate one of the variables by multiplying one or both equations by a constant so that the coefficients of one of the variables are equal in both equations. Then, we can subtract one equation from the other to eliminate that variable and solve for the remaining variable.

In this case, we can eliminate y by multiplying the first equation by -7 and the second equation by 6, so that the coefficients of y are equal in both equations:

-28x - 42y = -336

18x + 42y = 306

Adding these two equations together, we get:

-10x = -30

Dividing both sides by -10, we get:

x = 3

Now that we have solved for x, we can substitute this value into one of the original equations to solve for y. Using the first equation, we get:

4x + 6y = 48

4(3) + 6y = 48

12 + 6y = 48

Subtracting 12 from both sides, we get:

6y = 36

Dividing both sides by 6, we get:

y = 6

Therefore, the solution to the system of linear equations is x = 3 and y = 6.

A bicycle wheel has a diameter of 26 inches. Isabelle rides the bike so that the wheel makes two complete rotations per second. Which function models the height of a spot on the edge of the wheel?
A. h(t) = 13 sin(2π t) + 13
B. h(t) = 13 sin(4π t)
C. h(t) = 13 sin(4π t) + 13
D. h(t) = 13 sin(2π t)

Answers

Answer:

I can definitely help you with that math problem! Given the information about the bicycle wheel, we need to find the function that models the height of a spot on the edge of the wheel. We know that the wheel has a diameter of 26 inches, which means the radius is half of that, or 13 inches. Isabelle rides the bike so that the wheel makes two complete rotations per second, which means the period of the function is 1/2 second (since it takes half a second for the wheel to complete one rotation).

Using the formula for a sinusoidal function, we can write the function as h(t) = A sin(2π/B (t - h)) + k, where A is the amplitude, B is the period, h is the horizontal shift, and k is the vertical shift. We can determine the values of these parameters as follows:

- Amplitude: The amplitude is half the distance between the highest and lowest points of the function. Since the radius of the wheel is 13 inches, the highest and lowest points are 26 inches apart. Therefore, the amplitude is 13 inches.

- Period: We know that the period is 1/2 second, so B = 2π/1/2 = 4π.

- Horizontal shift: The function starts at its highest point, so there is no horizontal shift. Therefore, h = 0.

- Vertical shift: The center of the wheel is at a height of 13 inches above the ground, so the vertical shift is also 13 inches.

Putting it all together, we get the function h(t) = 13 sin(4πt) + 13, which corresponds to option C. This function models the height of a spot on the edge of the wheel as Isabelle rides the bike. I hope this explanation helps! Let me know if you have any other questions or if there's anything else I can assist you with.

MARK AS BRAINLIEST!!!

Other Questions
N Heracio's Computer Time Shopping Research 10% Videos 15% Homework 20% Games 20% Social dia 25% Heracio used the computer a total of 40 hours last week. How many more hours did Heracio use the computer to do homework than shop online? Find the height of a cone with a diameter of 12m whose volume is 226m3. Use 3. 14, and round your answer to nearest meter Identify one water parameter that could be measured to determine whether raw sewage is present in surface waterways. Feature Read the poem. Afternoon in School The Last Lesson by D.H. Lawrence When will the bell ring, and end this weariness? How long have they tugged the leash, and strained apart My pack of unruly hounds: I cannot start Them again on a quarry of knowledge they hate to hunt, I can haul them and urge them no more. No more can I endure to bear the brunt Of the books that lie out on the desks: a full three score Of several insults of blotted pages and scrawl Of slovenly work that they have offered me. I am sick, and tired more than any thrall Upon the woodstacks working weariedly. And shall I take The last dear fuel and heap it on my soul Till I rouse my will like a fire to consume Their dross of indifference, and burn the scroll Of their insults in punishment? I will not! I will not waste myself to embers for them, Not all for them shall the fires of my life be hot, For myself a heap of ashes of weariness, till sleep Shall have raked the embers clear: I will keep Some of my strength for myself, for if I should sell It all for them, I should hate them I will sit and wait for the bell. Question How does hyperbole develop the theme of Afternoon in School The Last Lesson? Responses It adds to the tone by creating suspense. It adds to the tone by creating suspense., It emphasizes how frustrated and passionate the teacher feels. It emphasizes how frustrated and passionate the teacher feels., It creates vivid imagery and symbols. It creates vivid imagery and symbols., It creates humor, distracting the reader from the poets main theme. It creates humor, distracting the reader from the poets main theme., can someone please helppp Write a conclusion paragraph about emerging adulthood that includes romantic love, sexually transmitted infections, identity moratorium, grit, and chronic disorders. I need help.............................................. what is the solution to -15x=90 A telephone calling card company allows for $0.25 per minute plus a one-time service charge of $0.75. If the total cost of the card is $5.00, find the number of minutes you can use the card. What is the pH of a solution whose [H3O+] is1. 1*10^-9 M? How do human activities contribute to the EXTREME effects of Habagat and Amihan? Please help ;-;2. Identify an example of cultural bias, stereotyping, and/or prejudice faced by American children during the nineteenth century. Explain how it affected them socially, politically, and economically. (Score for Question 3: ___ of 4 points)3. Identify an example of cultural bias, stereotyping, and/or prejudice faced by African Americans during the nineteenth century. Explain how it affected them socially, politically, and economically. (Score for Question 4: ___ of 4 points)4. Identify an example of cultural bias, stereotyping, and/or prejudice faced by Native Americans during the nineteenth century. Explain how it affected them socially, politically, and economically. (Score for Question 5: ___ of 4 points)5. Identify a widely held example of cultural bias, stereotyping, and/or prejudice in nineteenth century America. Explain how it affected the population as a whole socially, politically, and economically What type of circuit is shown Bonjour, j'ai un devoir rendre en hlp pour mardi mais je ne comprends vraiment rien, quelqu'un pourrait bien m'aider svp ? Un norme merci d'avance ce qui le feront. The equation m = 1. 4p represents the mass, m, in grams, ofp polished stones. Malala talks about the pashtunwali code that her family and their neighbors follow. read about the main principles of pashtunwali here. which principle do you find the most interesting? why? how are males and females treated differently in malalas culture? cite two examples from chapter 1. what role does education play in malalas family? how does malala feel about education? 4 How would the author probably describe bird banding?A as a good idea, but not something that works well in the real worldB as an important way to learn more about birds so we can protect themC as a dangerous way to track birds that can cause serious problemsD as a fun way to pass the time for people who want to understand nature How did conditions for slaves in the United States compare to those in the Caribbean by the mid-nineteenth century?a. Slaves were typically better fed in the United States than they were in the Caribbean.b. While slave owners in the United States could legally choose to free their slaves, freeing slaves was illegal in the Caribbean.c. Laws in the United States afforded slaves significantly stronger legal protection against ill treatment and cruel punishments.d. Life expectancy for slaves in the United States was nearly ten years less than for slaves in the Caribbean.e. Infant mortality rates were significantly higher for slaves in the United States. How would you describe the helmer's relationship in the first excerpt? use 1 point details to support your answer. how does this scene reflect the ideals and so djal traditions of ibsen's time? + your answer in the scene excerpt, what is torvald helmer's response to nora's pont Reflect on the literature we read in the Genre of Prose. These were from Tagore through Silko. (choose Silko) Provide a thoughtful explanation with examples of the literature you read in this genre. (choose yellow woman)Instructions: Answer as many of the following questions as you can in your writing; however, if you drop a question, keep the remaining questions in the order listed. Write in paragraph format. Here is the order in which to write your reflection:Give a summary explanation of the genre of prose. Required to provideProvide the name of the writer and title of the short story that you will reflect on. If you write about more than one, name the authors and titles as well. Required to provide.How did one or more of the short stories capture your attention (or at all) in this genre?Has the short story, or stories, changed or affirmed your view on some aspects of life or human nature? Explain with examples from the literature.Has the short story, or stories, left you with any questions about life or human nature?Did any critical issues appear in the short story, or stories, that you had not thought about in that way before? Include which one or ones with your explanation.Does the short story, or stories, relate to anything from your past reading experiences or your own experiences or experiences in our society today?Would you recommend the short story, or stories, for someone else to read and why? Required to answer.Reply with a thoughtful comment on another classmate's posting--no less than 100 words and focused on the content of the posting rather than on how good the posting was.Rubric: 100% Wrote a minimum of no less than 200 words for your posting. Accurately followed instructions. Adhered to grammar, spelling, and punctuation. 85% Wrote nearly a minimum of 200 words. Followed most instructions. Adhered to grammar, spelling, and punctuation.