Alana saved 1,200.00 to buy a pool table, but decided instead to charge it to her credit card.If the credit card had an interest rate of 13.5% for 6 months with no other fees, and she made no other purchases, what was her cost of credit of using the credit card instead of paying cash?

Yes, your friend is not correct about 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.

Find out more on stem and leaf plots at https://brainly.com/question/8649311

#SPJ1

The taxi travels 140 kilometers in 210 minutes at a speed of 40 km/h.

Let's calculate the distance a taxi travels in 210 minutes at a speed of 40 km/h.
Convert minutes to hours
Since the speed is given in km/h, we need to convert 210 minutes into hours.

There are 60 minutes in an hour, so divide 210 by 60:
210 minutes ÷ 60 = 3.5 hours
Calculate the distance
Now that we have the time in hours, we can use the formula for distance:
Distance = Speed × Time
In this case, the speed is 40 km/h, and the time is 3.5 hours.

Plug these values into the formula:
Distance = 40 km/h × 3.5 hours
Compute the result
Multiply the speed by the time to find the distance:
Distance = 140 km.

For similar question on speed.

https://brainly.com/question/6504879

#SPJ11

Using the inscribed angle theorem, the value of x in the circle shown is calculated as: m<x = 36°.

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°

Learn more about the inscribed angle theorem on:

https://brainly.com/question/27388716

#SPJ1

Answer:  x = ± [tex]\frac{1}{2}[/tex]

Step-by-step explanation:

Equation:

4x² + 10 = 11         > bring everything over to other side

                            > first subtract 10 from both sides

4x² = 1                   > Divide by 4 on both sides

x² =  [tex]\frac{1}{4}[/tex]                    >Take square root of both sides

                             > When you take square root there is a ±

x = ±  [tex]\sqrt{(\frac{1}{4} )}[/tex]           > take the square root of both top and bottom

x = ± [tex]\frac{1}{2}[/tex]

The function rule for the statement "the output is eight less than the input" is a simple mathematical expression that represents a relationship between the input and output values.

In this case, it can be expressed as Output = Input - 8. The function takes the input value, subtracts 8 from it, and returns the result as the output value. This rule ensures that the output will always be eight units smaller than the input. For example, if the input is 15, the output will be 7. This function rule can be used to perform calculations or model various scenarios where the output is consistently eight units less than the input.

To know more about function rule, refer here:

https://brainly.com/question/10705186

#SPJ11

The volume of the sphere that lies between the two cones is approximately 43.53 cubic units.

To find the volume of the sphere that lies between the given cones, we first need to determine the limits of integration.

Since the sphere has a radius of 6 (since x² + y² + z² = 36), we can use spherical coordinates to express the volume as an integral. Let's first consider the cone z = √3x² + 3y².

In spherical coordinates, this is equivalent to z = ρcos(φ)√3, where ρ is the radial distance and φ is the angle between the positive z-axis and the line connecting the origin to the point.

Similarly, the cone z = √(x²+y²)/3 can be expressed in spherical coordinates as z = ρcos(φ)/√3.

Since we're only interested in the volume of the sphere between these cones, we can integrate over the limits of ρ and φ that satisfy both inequalities.

The limits of ρ will be 0 (the origin) to 6 (the radius of the sphere).

To find the limits of φ, we need to solve for the intersection points of the two cones.

Setting the two equations equal to each other, we get:

ρcos(φ)√3 = ρcos(φ)/√3

Solving for φ, we get:

tan(φ) = 1/√3 Using the inverse tangent function, we find that: φ = π/6, 7π/6

So the limits of integration for φ will be π/6 to 7π/6.

Finally, we need to integrate over the full range of θ (the angle between the positive x-axis and the line connecting the origin to the point).

This will be 0 to 2π.

Putting it all together, the volume of the sphere between the two cones is:

∫∫∫ ρ^2sin(φ) dρ dφ dθ

With limits of integration:

0 ≤ ρ ≤ 6 π/6 ≤ φ ≤ 7π/6 0 ≤ θ ≤ 2π

Evaluating this integral gives:

V = 288π/5 - 216√3π/5

So the volume of the sphere that lies between the two cones is approximately 43.53 cubic units.

Learn more about volume of sphere at

https://brainly.com/question/21623450

#SPJ11

The brother is 35 years old.

Let's use the variable "b" to represent your brother's age.

According to the problem, your brother's age minus nineteen (b - 19) is equal to your sister's age, which is 16. So we can write an equation:

b - 19 = 16

To solve for b, we can add 19 to both sides of the equation:

b - 19 + 19 = 16 + 19

Simplifying, we get:

b = 35

Therefore, your brother is 35 years old.

Learn more about variable

brainly.com/question/17344045

#SPJ11

The volume of a rectangular prism is given by the formula V = lwh, where l is the length, w is the width, and h is the height. In this case, we have:

V = 5 x 3 x 8

V = 120 cubic inches

The price of the popcorn is not given, so we cannot calculate the price per cubic inch.

To know more about volume refer here

https://brainly.com/question/1578538#

#SPJ11

Answer:

x = 14°

t = 12.367 ~ 12.4

r = 2.999 ~ 3

Step-by-step explanation:

1st we can find x by sum theory which is the sum of all side equal to 180° .

x + 90° + 76° = 180 °

x + 166° = 180°

x= 180° - 166°

x = 14° ... So the unknown angle is 14°

and we also can solve hypotenus t and adjecent r by using sin amd cos respectively by angle 76° .

sin(76) = 12/t

sin(76) t = 12 ....... criss cross it

t = 12 / sin(76) ....... divided both side by sin(76)

t = 12.367 ~ 12.4 ....... result

And

cos(76) = r / 12.4

r = cos(76) × 12.4 .......criss cross

r = 2.999 ~ 3 ....... amswer and i approximate it

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.

Learn more about Surface area of Cylinder:

https://brainly.com/question/27440983

#SPJ4

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

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.

Visit here to learn more about parametric curve brainly.com/question/15585522
#SPJ11

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.

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.

Learn more about appropriate compound interest.

brainly.com/question/18722904

#SPJ11

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.

To know more about fixed cost click on below link:

https://brainly.com/question/13954526#

#SPJ11

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.

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

https://brainly.com/question/17267403#

#SPJ11

The expected value of an original investment of 3000 that has a 10% chance of ending up with a value of 2000 is 2900. The expected value of the investment can be calculated by multiplying the probability of the investment ending up with a certain value by that value, and then summing up all the possible outcomes.

In this case, there is a 90% chance of the investment retaining its original value of 3000, and a 10% chance of it ending up with a value of 2000. To calculate the expected value, we can use the following formula:

Expected Value = (Probability of Outcome 1 × Value of Outcome 1) + (Probability of Outcome 2 × Value of Outcome 2)

Substituting the values,
Expected value = (0.9 x 3000) + (0.1 x 2000)
Expected value = 2700 + 200
Expected value = 2900

Therefore, the expected value of the original investment of 3000 is 2900.

To learn more about  investment : https://brainly.com/question/29547577

#SPJ11

Answer:

  34.8°

Step-by-step explanation:

You want the angle between a tangent and a segment to the center from a point on the tangent that is 6 units from the circle of radius 8 units.

The trig relation useful here is ...

  Sin = Opposite/Hypotenuse

  sin(S) = RQ/SQ

The length QT is the same as QR, so we have ...

  sin(S) = 8/(8 +6)

  S = arcsin(8/(8+6)) ≈ 34.8°

Therefore, the exact values of sin 2u, cos 2u, and tan 2u are -24/25, 7/25, and -24/7, respectively.

The double angle formulas are:

sin 2u = 2 sin u cos u

cos 2u = cos² u - sin² u

tan 2u = 2 tan u / (1 - tan² u)

Given that cos u = -4/5 and u is between -π/2 and π, we can find sin u by using the Pythagorean identity:

sin² u + cos² u = 1

sin u = sqrt(1 - cos² u) = sqrt(1 - 16/25) = 3/5 (since u is in the second quadrant)

Using this value of sin u, we can find:

sin 2u = 2 sin u cos u = 2 (3/5) (-4/5) = -24/25

cos 2u = cos² u - sin² u = (-4/5)² - (3/5)² = 7/25

tan 2u = 2 tan u / (1 - tan² u) = 2 (-3/4) / (1 - (-3/4)²) = -24/7

For more similar questions on topic maximization

https://brainly.com/question/29502088

#SPJ11

For the function, M(x) = 2x⁴ - 5x-3

1. M'''(2) = 96
2. dy/dx = (2x + 9x²y⁴) / (12x³y³ + 12y²)
3. dy/dt = -12,320 when dx/dt = -2 and x = -10

1. To find the value of M'''(2) for the function M(x) = 2x⁴ - 5x - 3, first find the first, second, and third derivatives:

M'(x) = 8x³ - 5
M''(x) = 24x²
M'''(x) = 48x

Now evaluate M'''(2):
M'''(2) = 48(2) = 96

2. To find dy/dx for the relation x² = -3x³y⁴ - 4y³, first implicitly differentiate both sides with respect to x:

2x = -3(3x²y⁴ + x³(4y³dy/dx)) - 4(3y²dy/dx)

Now solve for dy/dx:

dy/dx = (2x + 9x²y⁴) / (12x³y³ + 12y²)

3. To find dy/dt for the function y = 3x⁴ - 8x² + 4, first differentiate with respect to t:

dy/dt = (12x³ - 16x)(dx/dt)

Now evaluate dy/dt when dx/dt = -2 and x = -10:

dy/dt = (12(-10)³ - 16(-10))(-2) = (12,000 + 160)(-2) = -12,320

For more such questions on Function.

https://brainly.com/question/22981287#

#SPJ11

The package that requires more wrapping paper to cover is the cube. The total amount of wrapping paper Susan must use to cover both packages is 286 square inches.

Let's find the surface area of both packages to determine which requires more wrapping paper and the total amount needed.

1. Rectangular prism:
Surface area = 2lw + 2lh + 2wh
where l = length, w = width, h = height
Surface area = 2(4)(2) + 2(4)(10) + 2(2)(10)
Surface area = 16 + 80 + 40 = 136 square inches

2. Cube:
Surface area = 6s²
where s = side length
Surface area = 6(5)² = 6(25) = 150 square inches

The cube requires more wrapping paper to cover as its surface area is 150 square inches, compared to the rectangular prism's 136 square inches. The total amount of wrapping paper Susan must use for both packages is 136 + 150 = 286 square inches.

Learn more about surface area here: https://brainly.com/question/27950508

#SPJ11

Answer: 24 unit

Step-by-step explanation:

The derivative of the function y = 2(2^x)-2 is 12 * 2^x ln(2) or 12ln(2)x(2^x-1).

To find the derivative of the function y = 2(2^x)-2, we will use the power rule and the chain rule of differentiation.

Apply the power rule to the function y = 2(2^x)-2. The power rule states that if f(x) = x^n, then f'(x) = nx^(n-1).

y' = [2(2^x)-2]'

= 2[(2^x)-2]'

= 2ln(2^x)'

Apply the chain rule to (2^x)'. The chain rule states that if f(x) = g(h(x)), then f'(x) = g'(h(x))h'(x). In this case, g(x) = 2^x, so g'(x) = ln(2)*2^x.

y' = 2ln(2^x)'

= 2ln(2^x)

= 2ln(2)x(2^x-1)

Therefore, the derivative of the function y = 2(2^x)-2 is 12 * 2^x ln(2) or 12ln(2)x(2^x-1).

For more questions like Derivative click the link below:

https://brainly.com/question/25324584

#SPJ11

Zombie Epsilon would require 52.5 days of doses, Zombie Zeta would need 163.3 days, and Zombie Eta would require 636e days to be cured.

To develop a theoretical antidote, you would need to consider the virus strand, concentration (mag/ml), and the equation to calculate the number of doses needed.

For Zombie Epsilon, Zeta, and Eta, the amounts of virus are 150, 230, and 636 mag/ml, respectively. To create an effective antidote, you would need to identify the specific virus strands for each zombie type (e.g., strand 3.5 for Epsilon, 7.1 for Zeta, and "e" for Eta).

Using the provided information, the equation should be used to determine the number of days (doses needed) for each zombie type. As an example, let's assume the equation is as follows: Days = (Amount of Virus * Strand) / 10.

For Zombie Epsilon: Days = (150 * 3.5) / 10 = 52.5 days
For Zombie Zeta: Days = (230 * 7.1) / 10 = 163.3 days
For Zombie Eta: Days = (636 * e) / 10 = 636e days (where e is a constant value)

In this theoretical scenario, Zombie Epsilon would require 52.5 days of doses, Zombie Zeta would need 163.3 days, and Zombie Eta would require 636e days to be cured.

Please note that this is a fictional scenario and not based on real-life medical information.

To learn more about equation, refer below:

https://brainly.com/question/29657983

#SPJ11

The given equation, a = v²/r, solved for r is:

r = v²/a

From the question, we are to solve the given equation for r

From the given information,

The given equation is

a = v²/r

To solve the equation for r means we should isolate the variable r

Solving the equation for r

a = v²/r

Multiply both sides of the equation by r

a × r = v²/r × r

ar = v²

Divide both sides of the equation by a

ar/a = v²/a

r = v²/a

Hence, the equation solved for r is:

r = v²/a

Learn more on Subject of formulae here: https://brainly.com/question/19041791

https://brainly.com/question/24667938

#SPJ1

The number of cubical containers which are 9 cm long, 8cm wide, and 6 cm high completely filled with lemonade is 5.

volume of lemonade = 2160 cm³

Dimensions of container

L = 9 cm , B = 8 cm , H = 6 cm

Volume of container = L× B × H

Volume of container = 9×8×6

Volume of container = 432 cm³

To find the number of cubical containers filled we use

Number of containers filled = volume of lemonade/volume of the container

putting the value in formula

Number of container filled = 2160/432

Number of container filled = 5

Total number of container filled with lemonade is 5

To know more about number click here :

https://brainly.com/question/17429689

#SPJ4

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.

When approximating mixed fraction 5 6/13 to the nearest whole number, the rounded value is 5.

To round the mixed fraction 5 6/13 to the nearest whole number, we examine the fractional part, which is 6/13. The general rule for rounding mixed fractions is to consider the fractional part and round up if it is greater than or equal to 1/2, and round down if it is less than 1/2.

In this case, 6/13 is approximately 0.4615. Since it is less than 1/2, we need to round down to the nearest whole number. Therefore, when rounding 5 6/13 to the nearest whole number, the answer is 5.

A mixed fraction consists of a whole number part and a fractional part. When rounding a mixed fraction, we focus on the fractional part to determine the appropriate rounding direction. If the fractional part is exactly 1/2, it is typically rounded up to the next whole number.

However, in the case of 5 6/13, the fractional part is less than 1/2, so we round down. Rounding down gives us a more accurate approximation that is closer to the original value. In this instance, rounding 5 6/13 down to 5 provides a whole number estimate that is slightly smaller but still reasonably close to the initial mixed fraction.

Rounding serves as a useful tool in situations where precise values are not necessary and a simpler approximation is sufficient for practical purposes.

To learn more about mixed number refer here:

https://brainly.com/question/24137171

#SPJ11

The region that contains viable solutions to the systems of inequalities is region H

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

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

Read more about inequality at

https://brainly.com/question/25275758

#SPJ1

The value of x and y is 11 and 4 respectively

A cyclic quadrilateral is a quadrilateral which has all its four vertices lying on a circle. It is also sometimes called inscribed quadrilateral.

A theorem in circle geometry states that the sum of opposite angles in a cyclic quadrilateral are supplementary. i.e they sum up to give 180.

10x + 16y+6 = 180

10x+16y = 174... eqn1

4+18y +10x-6 = 180

18y +10x = 182... eqn2

subtract equation 1 from 2

2y = 8

y = 8/2 = 4

Subtitle 4 for y in equation 1

10x+ 16(4)= 174

10x= 174-64

10x = 110

x= 110/10

x = 11

learn more about cyclic quadrilateral from

https://brainly.com/question/26690979

#SPJ1

If the CPI was 305 in 1995, the price of jeans that cost $14.99 in 1973 would be approximately $47.05 in 1995 after adjusting for inflation.

To find the price of jeans in 1995, we first need to adjust the 1973 price for inflation using the Consumer Price Index (CPI). CPI measures the average change in prices of goods and services over time, so it can help us compare prices from different years.

First, we need to calculate the inflation rate between 1973 and 1995. We can do this by dividing the CPI in 1995 (305) by the CPI in 1973 (135):

Inflation rate = (305 / 135) * 100% = 226.67%

This means that prices in 1995 were about 2.27 times higher than in 1973. Now, we can apply this inflation rate to the price of jeans in 1973:

Price in 1995 = Price in 1973 * (1 + inflation rate)

Price in 1995 = $14.99 * (1 + 2.2667) = $47.05

Therefore, if the CPI was 305 in 1995, the price of jeans that cost $14.99 in 1973 would be approximately $47.05 in 1995 after adjusting for inflation. This calculation helps to compare the cost of goods across different time periods by taking inflation into account, thus giving a better understanding of the changes in purchasing power over time.

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

https://brainly.com/question/14453270#

#SPJ11

This evaluated expression is a scalar multiple of -4, which projects that vectors CD and CE are collinear. Then, points C, D, and E lie on the same straight line.

Let us proceed by  evaluating the vector CD. Then C is the midpoint of OA, we can evaluate the vector CD by subtracting vector CO from vector OD.

Vector CO = 1/2 × Vector OA
= 1/2 × (a + b)
= 1/2a + 1/2b

Vector OD = 3/4 × Vector AD
= 3/4 × (3/4a - 1/4b)
= 9/16a - 3/16b

Vector CD = Vector OD - Vector CO
= (9/16a - 3/16b) - (1/2a + 1/2b) = 5/16a - 5/16b

Then the value of the vector CE is
OB = 2BE,
we can evaluate the vector BE by dividing vector OB by 2.

Vector BE = 1/2 × Vector OB
= 1/2 × b
= 1/2b

Vector CE = Vector CO + Vector OE

Vector OE = Vector OB - Vector OE
= b - Vector BE
= b - 1/2b
= 1/2b

Vector CE = Vector CO + Vector OE
= (1/2a + 1/2b) + (1/2b)
= 1/2a + b

Then we have to show that vectors CD and CE are collinear. Two vectors are collinear if one is a scalar multiple.

CE can be expressed in terms of CD
CE / CD
= ((1/2a + b) / (5/16a - 5/16b))

Applying simplification for this expression

CE / CD
= (-8a - 8b) / (5a - 5b)

To learn more about vector
https://brainly.com/question/27854247
#SPJ4