The range of the data set is 19 hours. None of the options are correct.
The given data set represents the number of hours Raymond spent practicing the piano each week for several weeks: 24, 8, 6, and 5 hours. To calculate the range, follow these steps:
1. Identify the highest and lowest values in the data set.
- The highest value is 24 hours.
- The lowest value is 5 hours.
2. Subtract the lowest value from the highest value to find the range.
- Range = Highest value - Lowest value
- Range = 24 hours - 5 hours
- Range = 19 hours
This means that there is a 19-hour difference between the maximum and minimum number of hours Raymond spent practicing the piano each week. None of the options (a. 8 hours, b. 2 hours, c. 5 hours, and 6 hours) provided matches the correct answer, which is 19 hours.
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Your friend makes a stem-and-leaf plot of the data. 51, 25, 47, 42, 55, 26, 50, 44, 55 Student work is shown. A stem and leaf plot. A vertical line separates each stem from its first leaf. The first row has a stem of 2 and leaves 5 and 6. The second row has a stem of 4 and leaves 2, 4, and 7. The third row has a stem of 5 and leaves 0, 1, 5, and 5. The key shows 4 vertical bar 2 is equal to 42. Is your friend correct? Responses yes yes no no Question 2 Explain your reasoning.
Yes, your friend is not correct about the stem and leaf plot.
How to design the stem and leaf plot ?The stem and leaf plot made by your friend is:
Stem | Leaves
2 | 5, 6
4 | 2, 4, 7
5 | 0, 1, 5, 5
Key : 4 | 2 = 42
When the data points from these are taken, we have :
25 , 26 , 42 , 44 , 47 , 50, 51, 55, 55
This is the same as the data provided of :
51, 25, 47, 42, 55, 26, 50, 44, 55
So, your friend's stem and leaf plot is indeed correct.
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A company manufactures to types of cabinets, type 1 and type 2. It produces 110 total cabinet’s each week.
Last week, the number of type 2 cabinets produced exceeded twice the number of type 1 cabinets produced by 20. If x is the number of type 1 cabinets produced and y is the number of type 2 cabinets produced, the system of equations that represent this situation is x + y = 110 and y = 2x+20
The number of type 2 cabinets produced last week is ____. This number exceeds the number of type 1 cabinets produced durin the week by ______.
The number of type 2 cabinets produced last week is 80. The number of type 2 cabinets produced last week exceeded the number of type 1 cabinets produced during the week by 50.
Using the system of equations given, we can solve for the number of type 1 and type 2 cabinets produced.
x + y = 110 represents the total number of cabinets produced, where x is the number of type 1 cabinets and y is the number of type 2 cabinets produced.
y = 2x + 20 represents the relationship between the number of type 1 and type 2 cabinets produced. This equation tells us that the number of type 2 cabinets produced exceeds twice the number of type 1 cabinets produced by 20.
To solve for y, we substitute the value of y from the second equation into the first equation:
x + (2x + 20) = 110
Simplifying this equation:
3x + 20 = 110
3x = 90
x = 30
Therefore, the number of type 1 cabinets produced last week is 30.
To find the number of type 2 cabinets produced, we substitute x = 30 into the second equation:
y = 2x + 20 = 2(30) + 20 = 80
The number of type 2 cabinets produced last week exceeds the number of type 1 cabinets produced during the week by:
80 - 30 = 50.
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A convenience store purchased a magazine and marked it up 100% from the original cost of $2. 30. A week later, the store placed the magazine on sale for 50% off. What was the discount price?
The discount price of the magazine was $2.30.
The convenience store purchased the magazine at an original cost of $2.30 and marked it up 100%. Find the selling price after the markup as follows.
1. Calculate the markup amount:
100% of $2.30 (Original cost * Markup percentage)
Markup amount = $2.30 * 100% = $2.30
2. Add the markup amount to the original cost to get the selling price.
Selling price = Original cost + Markup amount = $2.30 + $2.30 = $4.60
Next, the store placed the magazine on sale for 50% off.
3. Calculate the discount amount:
50% of the selling price (Selling price * Discount percentage)
1. Discount amount = $4.60 * 50% = $2.30
4. Subtract the discount amount from the selling price to get the discount price.
Discount price = Selling price - Discount amount = $4.60 - $2.30 = $2.30
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According to the national oceanic and atmospheric administration (noaa), between 1851 and 2013 there were 290 hurricanes that hit the u.s. coast. of these, 117 were category 1 hurricanes, 76 were category 2 hurricanes, 76 were category 3 hurricanes, 18 were category 4 hurricanes, and 3 were category 5 hurricanes. make a probability distribution for this data. if a hurricane hits the u.s. coast, what is the probability that the hurricane will be a category 1 hurricane?
The probability of a hurricane hitting the U.S. coast and being a category 1 hurricane is 0.403, or 40.3%.
The National Oceanic and Atmospheric Administration (NOAA) is a federal agency that is responsible for monitoring and predicting changes in the Earth's environment, including the atmosphere and oceans. One of their main responsibilities is to track and study hurricanes that affect the United States.
According to their data, there have been a total of 290 hurricanes that have hit the U.S. coast between 1851 and 2013. These hurricanes are categorized based on their wind speeds, with categories ranging from 1 to 5.
To create a probability distribution for this data, we need to calculate the probability of each category of hurricane occurring. We can do this by dividing the number of hurricanes in each category by the total number of hurricanes.
Category 1 hurricanes: 117/290 = 0.403
Category 2 hurricanes: 76/290 = 0.262
Category 3 hurricanes: 76/290 = 0.262
Category 4 hurricanes: 18/290 = 0.062
Category 5 hurricanes: 3/290 = 0.010
Therefore, the probability of a hurricane hitting the U.S. coast and being a category 1 hurricane is 0.403, or 40.3%. This means that out of all the hurricanes that have hit the U.S. coast, about 40% of them were category 1 hurricanes. It is important to note that this probability distribution is based on historical data and may not accurately predict the likelihood of future hurricanes.
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If you vertically compress the absolute value parent function, f(x) = x1, by a
factor of 4, what is the equation of the new function?
O A. G(x) = (x-41
B. G(x) = 1
O C. G(x) = 14x1
O (
D. G(x) = 411
Equation of new function when vertically compressing the absolute value of parent function by a factor of 4 is option d. g(x) = (1/4)|x|.
The absolute value parent function is f(x) = |x| .
f(x) = x when x is positive,
and f(x) = -x when x is negative.
To vertically compress the function by a factor of 4,
Multiply the function by 1/4.
This implies,
The equation of the new function is equal to,
g(x) = (1/4) × f(x)
= (1/4) × |x|
= (1/4) × x when x is positive,
and g(x) = (1/4) × (-x)
= (-1/4) × x when x is negative.
This implies,
g(x)= (1/4) × f(x)
= (1/4) |x|
(1/4) x for x ≥ 0
(-1/4) x for x < 0
Therefore, the equation of the new function is equal to option d. g(x) = (1/4)|x|.
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The above question is incomplete, the complete question is:
If you vertically compress the absolute value parent function, f(x) = |x|, by a factor of 4, what is the equation of the new function?
a. g(x) = 4x
b. g(x) = 4x -1
c. g(x) = x - 4
d. g(x) = (1/4)|x|
Of the following, which option or options would help make this graph less misleading? i. the scale on the x-axis should be resized. ii. the scale on the y-axis should be resized. iii. the identity of the two parks should be more clearly differentiated. a. i and ii b. ii and iii c. iii only d. i and iii
The option or options that would help make the graph less misleading are:
d. i and iii. The scale on the x-axis should be resized. The identity of the two parks should be more clearly differentiated.
Resizing the scale on the x-axis (option i) would help provide a clearer picture of the difference between the two parks, as it would make it easier to see the differences in the number of visitors between the two parks.
Differentiating the identity of the two parks more clearly (option iii) would also help reduce confusion and provide a more accurate representation of the data.
Resizing the scale on the y-axis (option ii) may not be necessary in this case, as the existing scale is appropriate and accurately represents the data.
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Complete the table by finding the balance a when p dollars is invested at rater for t years and compounded n times per year. (round your answer to the nearest cent.)
p = $3000, r = 4%, t = 20 years
1 2 4 12 365 continuous
The balance when $3000 is invested at 4% rate for 20 years and compounded annually, semi-annually, quarterly, monthly, daily, and continuously are $6,372.76, $6,454.81, $6,506.71, $6,535.94, $6,546.49, and $6,549.18 respectively.
How to calculate compound interest?Compounding Frequency Balance after 20 Years
Annually $6,372.76
Semi-annually $6,454.81
Quarterly $6,506.71
Monthly $6,535.94
Daily $6,546.49
Continuous $6,549.18
Using the formula for compound interest:
A = P(1 + r/n)^(nt)
where A is the balance after t years, P is the principal (amount invested), r is the annual interest rate, n is the number of times the interest is compounded per year, and t is the number of years.
For p = $3000, r = 4%, t = 20 years, and the different compounding frequencies, we get:
Annually: A = $3000(1 + 0.04/1)^(1*20) = $6,372.76
Semi-annually: A = $3000(1 + 0.04/2)^(2*20) = $6,454.81
Quarterly: A = $3000(1 + 0.04/4)^(4*20) = $6,506.71
Monthly: A = $3000(1 + 0.04/12)^(12*20) = $6,535.94
Daily: A = $3000(1 + 0.04/365)^(365*20) = $6,546.49
Continuous: A = $3000e^(0.0420) = $6,549.18 (where e is the constant 2.71828...)
Therefore, the balance a when $3000 is invested at 4% rate for 20 years and compounded n times per year (where n is the different frequencies given) are as mentioned above.
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Use tha appropriate compound interest formula to find the amount that will be in each account, given the stated conditions. $26,000 invested at 3.65% annual interest
for 2 years compounded
(a) daily (n = 365); (b) continuously
Amount that will be in the account after 2 years with daily compounding is $28,484.03.
Amount that will be in the account after 2 years with continuous compounding is $28,498.84.
What is appropriate proceedure to calculate annual interest?The appropriate compound interest formula is:
[tex]A = P(1 + r/n)^{nt[/tex]
A is the amount.
P is the principal.
r is the annual interest rate.
n is the number of times the interest is compounded all year.
t is the number of years.
(a) For daily compounding (n = 365), we have:
A = 26000(1 + 0.0365/365)³⁶⁵*²
A = 26000(1 + 0.0001)⁷³⁰
A = 26000(1.0001)⁷³⁰
A = 28,484.03
Therefore, the amount that will be in the account after 2 years with daily compounding is $28,484.03.
(b) For continuous compounding, we have:
A = P[tex]e^{rt[/tex]
e is the mathematical constant almost equal to 2.71828.
A = 26000[tex]e^{0.0365*2[/tex]
A = 26000[tex]e^{0.073[/tex]
A = 28,498.84
Therefore, the amount that will be in the account after 2 years with continuous compounding is $28,498.84.
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Write the equation below in standard and factored form y= -(x-1)^2+25
What is the measure of SRT?
R
S
53°
48°
[Not drawn to scale]
T
Answer:
B) 79°
Step-by-step explanation:
All interior angles of a circle add up to 180°.
We have 2 angles 53° and 48°, so we can write an equation:
53+48+x=180
simplify
101+x=180
subtract both sides by 101
x=79
So, the measure of angle SRT is 79°
Hope this helps! :)
Which region contains viable solutions to the systems of inequalities within the context of the situation? The situation is Everett wanted to create chocolate milk using whole milk and chocolate syrup. He wanted his chocolate milk to have less than 8 grams (g) of fat and less than 28 grams (g) of sugar. He drew the graph shown where x is the amount of whole milk in ounces (oz) and y is the amount of chocolate syrup in ounces (oz).
The region that contains viable solutions to the systems of inequalities is region H
Which region contains viable solutions to the systems of inequalities?From the question, we have the following parameters that can be used in our computation:
Chocolate milk to have less than 8 grams (g) of fat Also less than 28 grams (g) of sugar.This means that the region viable solutions to the systems of inequalities is the region below the inequallity line
In this case, the region is the region G
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Where should one start to learn maths if they're really bad at it
Consistent practice is key to improving your math skills over time.
How to learn math if you feel like you're really bad at it?If you feel like you're really bad at math, it's important to start with the basics. This might mean reviewing concepts like arithmetic, fractions, decimals, and percentages. You can find resources online or in books that can help you with this. Once you have a solid foundation, try to identify your strengths and weaknesses so you can focus your efforts on the areas where you need the most improvement. Find a learning style that works best for you, whether it's working independently, with a tutor, or in a study group. Finally, remember that consistent practice is key to improving your math skills over time. Don't give up, and don't be afraid to ask for help when you need it.
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Ted Pappas pays
$4,388. 65 in real estate taxes yearly. His property has a market value of
$119,340. 00 with a rate of assessmentof 42%. What is his tax rate to the
nearest tenth of a mill?
Ted Pappas' tax rate to the nearest tenth of a mill is approximately 87.6 mills.
First, let's determine the assessed value of the property. To do this, we'll multiply the market value by the rate of assessment:
Assessed Value = Market Value × Rate of Assessment
Assessed Value = $119,340 × 0.42
Assessed Value = $50,122.80
Now, we need to find the tax rate in mills. One mill is equal to $1 per $1,000 of assessed value. To find the tax rate, we'll divide the yearly real estate taxes by the assessed value and multiply by 1,000:
Tax Rate (in mills) = (Yearly Real Estate Taxes / Assessed Value) × 1,000
Tax Rate = ($4,388.65 / $50,122.80) × 1,000
Tax Rate ≈ 87.6 mills
Therefore, Ted Pappas' tax rate to the nearest tenth of a mill is approximately 87.6 mills.
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A cone has a volume of 1230. 88 units cubed and a diameter of 14 units. How many units is the height of the cone? Use 3. 14 for pi
Answer: 24 unit
Step-by-step explanation:
If t=26 and s=11.8, find r. Round to the nearest tenth
Answer:
Step-by-step explanation:
the answer is R=63
the questio is write a rule to describe each transformation
please please help me
The translation used is of 4 units to the right and 4 units upwards.
Which is the transformation in the graph?To find it, we just need to look at one of the vertices of the figures.
We can see that the vertex U starts at:
U = (0, -1)
And the second vertex U' is at (4, 3)
Taking the difference we will get:
(4, 3) - (0, -1) = (4, 4)
So we have a translation of 4 units to the right and 4 units upwards.
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Drake was trying to write an equation to help him predict the cost of his monthly phone bill.
He is charged $35 just for having a phone, and his only additional expense comes from the number of text that he sends,
He is charged $0. 05 for each text. Name the function C(t), where C(t) is the cost of bill according to number of text.
The function for Drake's monthly phone bill, C(t), is C(t) = 35 + 0.05t, where t represents the number of texts sent.
Drake has two components to his monthly phone bill: the base cost of $35 and the additional cost for texts sent. The base cost is fixed, meaning it does not change, so we can represent it as a constant value in the function (35).
The cost per text is $0.05, which means it varies depending on the number of texts sent (t). To find the total cost (C(t)), we need to add the fixed cost ($35) and the variable cost ($0.05 times the number of texts). Therefore, the function representing Drake's monthly phone bill cost is C(t) = 35 + 0.05t.
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2. A stone with a speed of 0.80 m/s rolls off the edge of a table 1.5 m high.
a. How long does it take to hit the floor
b. How far from the table will it hit floor
Answer:
Step-by-step explanation:
a. To find the time it takes for the stone to hit the floor, we can use the formula t = sqrt(2h/g), where h is the height of the table and g is the acceleration due to gravity. Plugging in the values, we get:
t = sqrt(2(1.5 m)/9.8 m/s^2) = 0.55 seconds.
b. To find the horizontal distance traveled by the stone, we can use the formula d = vt, where v is the initial velocity of the stone and t is the time it takes to hit the floor. Plugging in the values, we get:
d = (0.80 m/s) * (0.55 s) = 0.44 meters.
Therefore, the stone will hit the floor after 0.55 seconds and will travel 0.44 meters from the table.
Find the length of the following parametric curve. x = 6 + it, y = 4 + 43/2, 03752. 0 << Enter your answer symbolically, as in these examples
To find the length of the parametric curve, we can use the formula:
L = ∫a^b √(dx/dt)² + (dy/dt)² dt
Substituting the given values, we get:
L = ∫0^1 √(6)² + (43/2, 03752)² dt
Simplifying:
L = ∫0^1 √(36 + (43/2, 03752)²) dt
Therefore, the length of the parametric curve is:
L = √(36 + (43/2, 03752)²)
In mathematics, substitution refers to the process of replacing a variable or expression in an equation or formula with another variable or expression that has the same value.
For example, if we have an equation: 2x + 3y = 7, and we want to substitute x with the value 4, we replace x with 4 to get:
2(4) + 3y = 7
8 + 3y = 7
We can then solve for y to find its value.
Substitution is a commonly used technique in algebra and calculus to simplify expressions, solve equations and evaluate functions.
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Use the formula SA = 2π
rh + 2π
r2
to find is the surface area of the cylindrical food storage container. Use 3. 14 for π. Round your answer to the nearest hundredth of a square inch
The surface area of the cylindrical food storage container given by the formula SA = 2πrh + 2πr² is 954. 56 inch².
The region is the space taken up by a flat, two-dimensional surface. Its unit of measurement is the square. A three-dimensional object's surface area is the area occupied by its outside surface. It is also measured in square units.
Surface area and volume are calculated for each geometric object in three dimensions. The surface area of an object refers to the space that it takes up.
As, we Know the Surface Area of Cylinder
= 2πr² + 2πrh
Radius of the base = 8 inches
Height of the cylinder = 11 inches.
Now, putting the values we get
= 2πr² + 2πrh
= 2 x 3.14 x 8 x 8 + 2 x 3.14 x 8 x 11
= 401.92 + 552.64
= 954. 56 inch²
Therefore, the surface area of the cylinder is 954. 56 inch².
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Complete question
Use the formula SA = 2πrh + 2πr2 to find is the surface area of the cylindrical food storage container. Use 3. 14 for π. Round your answer to the nearest hundredth of a square inch
Jayden need wood to enclose his garden he measures one side of his garden and finds it is 6 feetlong how many feet of wood does jayden need to enclose his garden
To enclose his garden, Jayden needs 24 feet of wood assuming his rectangular-shaped garden has sides of 6 feet each.
How much wood does Jayden need?Jayden needs wood to enclose his garden. He measured one side of his garden and found that it is 6 feet long.
To calculate how many feet of wood Jayden needs to enclose his garden, we need to know the length of all sides of the garden.
Assuming that the garden is rectangular in shape, we need to know the length of the other side as well.
Let's say the other side is also 6 feet long. In this case, we can calculate the total length of wood required by using the formula for the perimeter of a rectangle, which is:
Perimeter = 2 x (Length + Width)
Here, the length and width of the garden are both 6 feet.
So, we can substitute these values in the formula and get:
Perimeter = 2 x (6 + 6) = 2 x 12 = 24 feet
Therefore, Jayden needs 24 feet of wood to enclose his garden.
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Points E, F, G and H lie on the circle and EG = EH.
HF and EG intersect at K.
ET is a tangent to the circle at E.
Angle FET = 47° and angle FEG = 25°.
Find the value of x.
Using the inscribed angle theorem, the value of x in the circle shown is calculated as: m<x = 36°.
How to Apply the Inscribed Angle Theorem?According to the inscribed angle theorem an inscribed angle has an angle measure that is always half of the measure of the arc it intercepts.
Measure of arc EFG = 2(25 + 47) [inscribed angle theorem]
Measure of arc EFG = 144°
Measure of angle EHG = 1/2(m(EFG)) [inscribed angle theorem]
Substitute:
Measure of angle EHG = 1/2(144) = 72°
m<EHG = m<EGH = 72° [this is because triangle EHG is an isosceles triangle since sides EG = EH].
Therefore, we have:
m<x = 180 - 2(72)
m<x = 36°
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Four years ago, Peter was three times as old as sylvia. In 5 years, the sum of their ages will be 38. What are their ages now
Peter is 19 years old and Sylvia is 9 years old now.
Let's use algebra to solve this problem.
Let's assume Peter's current age is P, and Sylvia's current age is S.
We can create two equations based on the information given:
Four years ago, Peter was three times as old as Sylvia:
P - 4 = 3(S - 4)
In 5 years, the sum of their ages will be 38:
(P + 5) + (S + 5) = 38
Now we can solve for P and S.
P - 4 = 3(S - 4)
P - 4 = 3S - 12
P = 3S - 8
(P + 5) + (S + 5) = 38
P + S + 10 = 38
P + S = 28
Now we can substitute P = 3S - 8 from the first equation into the second equation:
3S - 8 + S = 28
4S = 36
S = 9
So Sylvia's current age is 9.
We can use P + S = 28 from the second equation to find Peter's current age:
P + 9 = 28
P = 19
Therefore, Peter's current age is 19.
So currently Peter is 19 years old and Sylvia is 9 years old.
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A solid is made up of two identical cones, each with base diameter of 14cm and a slant height of 15cm. Find its Volume.
The volume of the solid made up of two identical cones is 1361.48 cm³.
To find the volume of a solid made up of two identical cones, we first need to calculate the volume of one cone and then multiply it by 2. The formula for the volume of a cone is V = (1/3)πr²h, where r is the radius and h is the height.
Given the base diameter of the cone is 14 cm, the radius (r) is half of the diameter, which is 7 cm. To find the height (h) of the cone, we can use the Pythagorean theorem since we have the slant height (15 cm) and radius.
Let h be the height, then:
h² + r² = (slant height)²
h² + 7² = 15²
h² + 49 = 225
h² = 176
h = √176 ≈ 13.27 cm
Now we can calculate the volume of one cone:
V = (1/3)π(7²)(13.27) ≈ 680.74 cm³
Since the solid is made up of two identical cones, we multiply the volume by 2:
Total volume = 2 × 680.74 cm³ ≈ 1361.48 cm³
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Can someone help and explain the terms and sequence with answers please?
29, 22, 15, 8
B) these are the first five terms of another sequence.
4, 7, 12, 19, 28
Find the nth term.
If the equation is y = 2x^2 + 4x - 6 what is zero #1 (x,y) and zero #2 (x,y)
The zero #1 is (-3, 0) and the zero #2 is (1, 0).
To find the zeros of the quadratic equation y = 2x² + 4x - 6, we need to solve for the values of x when y = 0.
We can start by setting y to zero:
0 = 2x² + 4x - 6
Next, we can divide both sides by 2 to simplify the equation:
0 = x² + 2x - 3
We can then factor the left-hand side of the equation:
0 = (x + 3)(x - 1)
Using the zero product property, we can set each factor equal to zero and solve for x:
x + 3 = 0 or x - 1 = 0
x = -3 or x = 1
So the zeros of the quadratic function are (-3,0) and (1,0).
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2. Iwo functions t and g are definea on the set R of real numbers by f: x x² - 2x - 4. g: x → X - 1 Find the value fx for which f(x) = (x) = m - 4.
Answer:
We are given that:
- f(x) = x² - 2x - 4
- g(x) = x - 1We want to find fx for which f(x) = g(x) - 4, or in other words:
- f(x) = x - 1 - 4
- f(x) = x - 5
We can solve forTo find the value of x for which f(x) = g(x) - 4 (which is what I assume you meant by "f(x) = (x) = m - 4"), we can set up the following equation:
f(x) = g(x) - 4
Substituting the given expressions for f(x) and g(x), we get:
x² - 2x - 4 = x - 1 - 4
Simplifying, we have:
x² - 3x - 3 = 0
We can solve for x using the quadratic formula:
x = (-(-3) ± sqrt((-3)² - 4(1)(-3))) / (2(1))
x = (3 ± sqrt(21)) / 2
Therefore, the two values of x for which f(x) = g(x) - 4 are:
- x = (3 + sqrt(21)) / 2
- x = (3 - sqrt(21)) / 2
principal: $5,000, annual interest: 6%, interest periods: 12, number of years: 18
After 18 years, the investment compounded periodically will be worth $
(Round to two decimal places as needed.)
more than the investment compounded annually.
Thus, the amount after the compounding is found to be $14,683.82.
Explain about the compound interest:Compound interest is, to put it simply, interest that is earned on interest. Compound interest is interest that is earned on both the initial principal and interest that builds up over time in a savings account.
There may be a difference in the timing of when interest is paid out and compounded. For instance, interest on a savings account may be paid monthly but compounded daily.
Given data:
principal P: $5,000,
annual interest r: 6%,
n interest periods: 12,
number of years t : 18
Formula:
A = P[tex](1 + r/n)^{nt}[/tex]
Put the values:
A = 5000[tex](1 + 0.06/12)^{12*18}[/tex]
A = 5000*2.93
A = 14,683.82
Thus, the amount after the compounding is found to be $14,683.82.
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Complete question:
principal: $5,000, annual interest: 6%, interest periods: 12, number of years: 18
After 18 years, the investment compounded what will be worth $___.?
THE PUZZLE
This problem gives you the chance to
Solve and reason abxut equations
A magazine contains a puzzle.
Each symbol represents a
number
>
28
>
24
Different symbols have
different values.
N
42
The sum of each row is given
at the side of the table.
>
36
Try to find out the value for each symbol:
heart-. Spade - 1. Club - 4 diamond
The value for each symbol is: Heart - 9, Spade - 3, Club - 6, Diamond - 8.
How to determine symbol values?To solve the puzzle and find the value for each symbol, we can use the given information.
First, we observe that the sum of each row is provided on the side of the table. Therefore, we can use this information to find the value for each symbol.
Let's assign variables to each symbol: heart (H), spade (S), club (C), and diamond (D).
From the first row, we have H + S + C = 28.
From the second row, we have H + D = 24.
From the third row, we have H + S + C + D = 36.
We can solve this system of equations to find the value for each symbol. By substituting the values, we can deduce that heart (H) is equal to 10, spade (S) is equal to 7, club (C) is equal to 11, and diamond (D) is equal to 14.
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Let and be two ordered bases of , and consider a linear transformation. Suppose that the change of base matrix is given by and the coordinate matrix of with respect to is given by use this to determine coordinate matrix of with respect to.
The coordinate matrix of the linear transformation with respect to the second ordered basis is found by multiplying the change of basis matrix by the coordinate matrix of the linear transformation with respect to the first ordered basis is [tex]\left[\begin{array}{cc}0&2/5\\1&-1/5\end{array}\right][/tex]
Let V be a vector space with two ordered bases B and B', and let T be a linear transformation from V to V. Suppose that the change of basis matrix from B to B' is P, and the coordinate matrix of T with respect to B is A.
To find the coordinate matrix of T with respect to B', we can use the formula
A' = P⁻¹AP
where A' is the coordinate matrix of T with respect to B'.
To use this formula, we need to find the inverse of P. If P is invertible, then we have
P⁻¹ = 1/det(P) * adj(P)
where det(P) is the determinant of P and adj(P) is the adjugate of P.
Assuming that P is invertible, we can compute its inverse as follows
det(P) = 1*(-2) - 2*2 = -5
adj(P) =[tex]\left[\begin{array}{cc}-2&2\\-2&1\end{array}\right][/tex]
So, P⁻¹ = (-1/5)*[tex]\left[\begin{array}{cc}-2&2\\-2&1\end{array}\right][/tex] = [tex]\left[\begin{array}{cc}2/5&-2/5\\2/5&-1/5\end{array}\right][/tex]
Now, we can use the formula to find the coordinate matrix of T with respect to B'
A' = P⁻¹AP = *[tex]\left[\begin{array}{cc}-2&1\\-1&0\end{array}\right][/tex]*[tex]\left[\begin{array}{cc}-1&2\\2&1\end{array}\right][/tex]= [tex]\left[\begin{array}{cc}0&2/5\\1&-1/5\end{array}\right][/tex]
Therefore, the coordinate matrix of T with respect to B' is
[tex]\left[\begin{array}{cc}0&2/5\\1&-1/5\end{array}\right][/tex]
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--The given question is incomplete, the complete question is given
" Using change of base matrices to find coordinate matrices of linear transformations Let B and C be two ordered bases of R2, and consider a linear transformation T: R2 + R2. Suppose that the change of base matrix Ic, B is given by [0 -2 3 3] and the coordinate matrix Tc,c of T with respect to C is given by [ -1 -1 2 -1] Use this to determine coordinate matrix TB,B of T with respect to B. TB,B ? "--
