Find the similarity ratio and the ratio of perimeters for two regular octagons with areas of 18 in2 and50 in2

Answers

Answer 1

Answer:

3:5 (or 3/5)

Step-by-step explanation:

The ratio of area is equal to (ratio of perimeters)^2

That means...

(18:50) = (a:b)^2

This simplifies to:

(9:25) = (a:b)^2

Which means...

3:5 = a:b


Related Questions

Kayla wants to purchase some new clothes for the school year and has a budget of $200. The sales tax rate that will apply when she makes her purchases is 7%. Here are the items she wants to purchase:

2 T-shirts, $9.98 each
1 pair of pants, $25.99
3 dresses, $24.99 each
1 pair of shoes, $89.99
Kayla’s budget be enough to purchase all of the clothing items listed after sales tax is applied because the total will be .

Answers

Answer:

Kayla will not have enough because the total will be $225.67

Step-by-step explanation:

2 * 9.98 = 19.96

3 * 24.99 = 74.97

19.96 + 25.99 = 45.95

45.95 + 74.97 = 120.92

120.92 + 89.99 = 210.91

0.07 * 210.91 = 14.76

210.91 + 14.76 = 225.67

Kayla will not have enough because the total will be $225.67

Calculation of the total balance:

Since there is a budget of $200. The sales tax rate is 7%

Also, the following items should be purchased

2 T-shirts, $9.98 each

1 pair of pants, $25.99

3 dresses, $24.99 each

1 pair of shoes, $89.99

So, the calculations should be

2 of 9.98 = 19.96

3 of 24.99 = 74.97

Now the total should be

19.96 + 25.99 = 45.95

45.95 + 74.97 = 120.92

120.92 + 89.99 = 210.91

0.07 of 210.91 = 14.76

And, finally

210.91 + 14.76 = 225.67

Therefore, Kayla will not have enough because the total will be $225.67

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Part C: YX = 24 meters and mYX = 120 degrees , then determine the radius of circle H.

Answers

Answer: The radius is 11.5 meters (to the nearest tenth)

Step-by-step explanation: The circle with center H has an arc TX that measures 24 meters, and also the angle subtended by YX equals 120°.

The length of an arc is given b the formula;

Length of arc = (∅/360) x 2πr

Where the length of the arc is 24 and ∅ is 120, the formula becomes;

24 = (120/360) x 2(3.14) r

24 = (1/3) x 6.28 r

By cross multiplication we now have,

(24 x 3)/6.28 = r

72/6.28 = r

11.4649 = r

r ≈ 11.5

Therefore, the radius is approximately 11.5 meters

what is the point-slope form of a line thats has a slope of-4 and passes through point (-3,1)

Answers

Answer:

y - 1 = -4(x+3)

Step-by-step explanation:

We will use the point slope form of a line

y-y1 = m(x-x1)  where m is the slope and (x1,y1) is the point

y - 1 = -4(x--3)

y - 1 = -4(x+3)

1. In a small town, there are 83 clinics serving the population of 24,742. Each clinic serves
about __________ of the town’s population.
a. 200 b. 250 c. 300

Answers

Answer:

each clinic serves about 300 people

Step-by-step explanation:

Population of 24742 is served by 83 clinics

Then each clinic will serve

24742/83 =298.157

300

Answer:

c. 300

Step-by-step explanation:

24,742/83

298.0963855

Approximately 300

On circle O below, the measure of SV is 120°.
pes
What is the measure of VU?
1
N
1
chord it
3 of 4
ar

Answers

The measure of angle VU is 240°.

Given that arc SV has a measure of **120°** and angle STV is **82°**, we can find the measure of angle VU.

1. The central angle STV is equal to the measure of arc SV. Therefore, ∠STV = 120°.

2. The sum of angles around a point (360°) is equal to the sum of the central angle and the inscribed angle. So, ∠VU + ∠STV = 360°.

3. Solving for ∠VU:

  - ∠VU + 120° = 360°

  - ∠VU = 360° - 120°

  - ∠VU = 240°

Therefore, the measure of angle VU is 240°.

Find the sum of the first 25 terms in this geometric series:
8 + 6 + 4.5...

Answers

Step-by-step explanation:

Given the geometric sequence

8 + 6 + 4.5...

A geometric sequence has a constant ratio and is defined by

[tex]a_n=a_1\cdot r^{n-1}[/tex]

[tex]\mathrm{Compute\:the\:ratios\:of\:all\:the\:adjacent\:terms}:\quad \:r=\frac{a_{n+1}}{a_n}[/tex]

[tex]\frac{6}{8}=\frac{3}{4},\:\quad \frac{4.5}{6}=\frac{3}{4}[/tex]

[tex]\mathrm{The\:ratio\:of\:all\:the\:adjacent\:terms\:is\:the\:same\:and\:equal\:to}[/tex]

[tex]r=\frac{3}{4}[/tex]

[tex]\mathrm{The\:first\:element\:of\:the\:sequence\:is}[/tex]

[tex]a_1=8[/tex]

[tex]\mathrm{Therefore,\:the\:}n\mathrm{th\:term\:is\:computed\:by}\:[/tex]

[tex]a_n=8\left(\frac{3}{4}\right)^{n-1}[/tex]

[tex]\mathrm{Geometric\:sequence\:sum\:formula:}[/tex]

[tex]a_1\frac{1-r^n}{1-r}[/tex]

[tex]\mathrm{Plug\:in\:the\:values:}[/tex]

[tex]n=25,\:\spacea_1=8,\:\spacer=\frac{3}{4}[/tex]

[tex]=8\cdot \frac{1-\left(\frac{3}{4}\right)^{25}}{1-\frac{3}{4}}[/tex]

[tex]\mathrm{Multiply\:fractions}:\quad \:a\cdot \frac{b}{c}=\frac{a\:\cdot \:b}{c}[/tex]

[tex]=\frac{\left(1-\left(\frac{3}{4}\right)^{25}\right)\cdot \:8}{1-\frac{3}{4}}[/tex]

[tex]=\frac{8\left(-\left(\frac{3}{4}\right)^{25}+1\right)}{\frac{1}{4}}[/tex]

[tex]\mathrm{Apply\:exponent\:rule}:\quad \left(\frac{a}{b}\right)^c=\frac{a^c}{b^c}[/tex]

[tex]=\frac{8\left(-\frac{3^{25}}{4^{25}}+1\right)}{\frac{1}{4}}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a}{\frac{b}{c}}=\frac{a\cdot \:c}{b}[/tex]

[tex]=\frac{\left(1-\frac{3^{25}}{4^{25}}\right)\cdot \:8\cdot \:4}{1}[/tex]

[tex]\mathrm{Multiply\:the\:numbers:}\:8\cdot \:4=32[/tex]

[tex]=\frac{32\left(-\frac{3^{25}}{4^{25}}+1\right)}{1}[/tex]

[tex]=\frac{32\cdot \frac{4^{25}-3^{25}}{4^{25}}}{1}[/tex]               ∵ [tex]\mathrm{Join}\:1-\frac{3^{25}}{4^{25}}:\quad \frac{4^{25}-3^{25}}{4^{25}}[/tex]

[tex]=32\cdot \frac{4^{25}-3^{25}}{4^{25}}[/tex]

[tex]=\frac{\left(4^{25}-3^{25}\right)\cdot \:32}{4^{25}}[/tex]

[tex]=\frac{2^5\left(4^{25}-3^{25}\right)}{2^{50}}[/tex]        ∵ [tex]\mathrm{Factor}\:32:\ 2^5[/tex],  [tex]\mathrm{Factor}\:4^{25}:\ 2^{50}[/tex]

so

[tex]=\frac{4^{25}-3^{25}}{2^{45}}[/tex]        ∵ [tex]\mathrm{Cancel\:}\frac{\left(4^{25}-3^{25}\right)\cdot \:2^5}{2^{50}}:\quad \frac{4^{25}-3^{25}}{2^{45}}[/tex]

[tex]\mathrm{Apply\:the\:fraction\:rule}:\quad \frac{a\pm \:b}{c}=\frac{a}{c}\pm \frac{b}{c}[/tex]

[tex]=\frac{4^{25}}{2^{45}}-\frac{3^{25}}{2^{45}}[/tex]      

[tex]=32-\frac{3^{25}}{2^{45}}[/tex]            ∵  [tex]\frac{4^{25}}{2^{45}}=32[/tex]

[tex]=32-0.024[/tex]        ∵  [tex]\frac{3^{25}}{2^{45}}=0.024[/tex]

[tex]=31.98[/tex]            

Therefore, the sum of the first 25 terms in this geometric series: 31.98

2 (r - 3) - 5(r + 2)

Answers

Answer:

-3r -16

Step-by-step explanation:

2 (r - 3) - 5(r + 2)

Distribute

2r-6 - 5r - 10

Combine like terms

-3r -16

2^5x=6 rounded to the nearest hundredth

Answers

I believe it would be 0.52

I think that the answer would be 0.52 if you round it


To find the maximum amount of water it takes to fill a rectangular fish tank, you need to know the

A.volume of the fish tank.


B.surface area of the fish tank.


C.area of the bottom of the fish tank.


D.perimeter of the bottom of the fish tank.

Answers

Answer:

answer is a

Step-by-step explanation:

the volume is everything on the inside of the tank

surface area would only be the amount of water it take of cover one side

area would just be the size of the glass on bottom

the perimeter would just be the length of all four edges of each side of the fish tank

For the maximum amount of water it takes to fill a rectangular fish tank, we need to know the volume of the fish tank.

Option A is the correct answer.

What is a rectangle?

A rectangle is a two-dimensional shape where the length and width are different.

The area of a rectangle is given as:

Area = Length x width

We have,

The volume of any container gives us the maximum amount the container can hold.

Now,

For the maximum amount of water it takes to fill a rectangular fish tank, we need to know the volume of the fish tank.

Thus,

The volume of the fish tank gives us the maximum amount it can hold.

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which statement explains the difference between the graph of f(x)=2x3 - 8x +3 and g(x)=x3 -4x​

Answers

Answer:

what are the statements lol

Step-by-step explanation:

On Your Own
phone store makes $15 per hour plus a commission
cales This week she sold 40 phones averaging $450
4. An employee at a cell phone store makes $15
of 2.5% of her phone sales. This week she sold
each. What is her commission this week?

(i need the explanation)

Answers

450 multiplied by .025 also known as 2.5 percent which equals 11.25 dollars
which is her commission for the week
Final answer:

An employee at a cell phone store sold 40 phones for $450 each, totaling $18,000 in sales. Based on her commission rate of 2.5%, she earns $450 in commission for the week.

Explanation:

The subject of this question is how to calculate the employee's commission based on her sales. First, we need to calculate the total sales the employee made. She sold 40 phones at $450 each, so her total sales would be 40 * $450 = $18,000.

Next, we need to figure out what 2.5% of her total sales is because this is her commission rate. The calculation would be $18,000 * 2.5/100 = $450.

So, the employee's commission for this week is $450.

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Which of the following is a solution to the inequality below?
10 − 12p > 41

A. p=12
B. p=7
C. p=11
D. p=-11

Answers

Answer:

The solution is D, -11.

Step-by-step explanation:

You have a $500 public relations budget for the current year. You would like to generate publicity by publishing several ads in the local township newspaper about your store's sponsorship of community activities. The newspaper normally charges $75 per ad but will give you a 20% discount since your message is community service-oriented. How many ads can you buy?

Answers

Answer:

8 ads

Step-by-step explanation:

To start off, we know we have a budget of $500 which means we cannot go above that amount. Ads cost $75 each but in our case they are now 20% cheaper. Lets figure out the new price of the ads. Remember to change 20% into its decimal form (20% -> 0.2)

75 x 0.2 = 15

Now we subtract 15 from 75 to get our new ad price.

75 - 15 = 60

Now to figure out how many ads we can get with a budget of $500, we simply divide 500 by 60. Don't forget to round the answer to the nearest whole number since we cannot go over our budget.

500 / 60 = 8 ads

On a map, 1 inch equals 5 miles. Two cities are 8 inches apart on the map.

Answers

Answer:

The distance in miles that the cities are apart is 40 miles

Step-by-step explanation:

To get from 1 inch to 8 inches, you multiply by 8. This means you multiply 5 miles by 8 to get 40 miles.

Answer:40 miles

Step-by-step explanation:

because 1 inch is 5 miles and the cities are 8 miles apart so 8x5=40.

perform the operation (-3-2i)-(3+i)

Answers

Answer:

- 6 - 3i

Step-by-step explanation:

Given

(- 3 - 2i) - (3 + i) ← distribute both parenthesis

= - 3 - 2i - 3 - i ← collect like terms

= - 6 - 3i

At Keller's Bike Rentals, it costs $22 to rent a bike for 4 hours. How many hours of bike use does a customer get per dollar?

Answers

Answer:

$5.5 per hour

Step-by-step explanation:

You divide the cost  by the number of hours

Answer:

About 10 minutes, which is 1/6 of an hour.

Step-by-step explanation:

1) If 3 out 5 students play sports at school, how many students play
sports if there are 720 students?

Answers

Answer:

432

Step-by-step explanation:

There will be 270 students that play sports at school

A rectangle is dilated by a scale factor of n = 1. Which statement is true regarding the image of the dilation?

Answers

Answer:

The image will be congruent to the pre-image because n = 1.

Answer:

Awsner number 2

Step-by-step explanation:

Solve simultaneous equation
X-2y=1
2x-y=2

Answers

Answer: x=1,y=0

Step-by-step explanation:

X-2y=1.....equation 1

2x-y=2.....equation 2

X=1+2y.......equation 3

Substitute equation 3into 2

2(1+2y)-y=2

2+4y-y=2

2+3y=2

3y=2-2

3y=0

Y=0/3

Y=0

Substitute for y=0 in equation 1

X-2y=1

X-2(0)=1

X-0=1

X=1

X=1 & Y=0

Answer:

x=1

y=0

Step-by-step explanation:

On a coordinate plane, the x-axis is labeled Side length and the y-axis is labeled Perimeter or area. A line representing the perimeter goes through points (0, 0), (1, 4), (2, 8), (3, 12). A curved line representing the area goes through points (0, 0), (2, 4), (3, 9), and (4, 16).
Andrew wants to build a square garden, and needs to determine how much area he has for planting. The perimeter of the garden is between 12 and 14 feet. What is the range of the possible areas?
3 ft2 and 4 ft2
9 ft2 and 12.25 ft2
12.25 ft2 and 14 ft2
14 ft2 and 16 ft2

Answers

Answer: 9ft² and 12.25ft²

Step-by-step explanation:

The range of the possible areas will be 9 square feet and 12.25 square feet. Then the correct option is B.

What is coordinate geometry?

Coordinate geometry is the study of geometry using the points in space.

On a coordinate plane, the x-axis is labeled Side length and the y-axis is labeled Perimeter or area.

A line representing the perimeter goes through points (0, 0), (1, 4), (2, 8), (3, 12).

Then the equation of line will be

y = [(12 – 8) / (3 – 2)]x

y = 4x

A curved line representing the area goes through points (0, 0), (2, 4), (3, 9), and (4, 16).

y = x²

Andrew wants to build a square garden, and needs to determine how much area he has for planting.

The perimeter of the garden is between 12 and 14 feet.

Then the value of the side length corresponding to 12 and 14 will be

For y = 12, we have

12 = 4x

 x = 3

Then the area will be

y = 3²

y = 9 square feet

For y = 14, we have

14= 4x

 x = 3.5

Then the area will be

y = 3.5²

y = 12.25 square feet

Then the range of the possible areas will be 9 square feet and 12.25 square feet.

Then the correct option is B.

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When renting a limo for prom, the number of people varies inversely with the cost per person. Originally there were 12 people and the cost per person was $20. If the number of people changed to 6, what would be the new cost per person?

Answers

Answer:

40

Step-by-step explanation:

how to factor 15x-7x-2

Answers

Use the butterfly method: you need to find two numbers that add up to a times c = 15 times -2 = -30, and the same two numbers need to add up to -7.

These two numbers are -10 and 3.
(-10)(3) = 30 and -10 + 3 = -7

Factored form: ( x - 10 )( x + 3 )

For the following equation, what are the solutions?
x^2+16=0
-
How many X-intercepts have quadratic functions with complex roots?

Answers

Answer:

x=√-16

Step-by-step explanation:

Since x^2+16=0

Substrate 16

X^2=-16

Square root of both sides

X=√-16

So therefore the final answer is

X=√-16

What is the lateral surface area?​
please help me if you can thank you :)

Answers

Answer:

lateral surface area means surface area of vertical walls.

there are 3 vertical walls and each is a rectangle.

hence

lateral surface area = 3 × area of one wall

= 3× ( 8×5 )

= 3 × 40

= 120 square units

- What is the slope from the points (2, 3) and (-3,-1) *

Answers

Answer:

4/5

Step-by-step explanation:

To find the slope given two points

m = (y2-y1)/(x2-x1)

   = (-1 -3)/(-3 -2)

    =-4/-5

    = 4/5

We can use the points (2,3) and (-3,-1) to solve.

Slope formula: y2-y1/x2-x1

= -1-3/-3-2

= -4/-5

= 4/5

Best of Luck!

Which two angles are supplementary?

Answers

There are only two angle measures here, an angle, a bunch of congruent copies, and its supplement, with a bunch of congruent copies.

∠1 ≅ ∠3 ≅ ∠5 ≅ ∠7 are all supplementary to ∠2 ≅ ∠4 ≅ ∠6 ≅ ∠8

Which of these equations have no solution? Check all that apply.

2(x + 2) + 2 = 2(x + 3) + 1
2x + 3(x + 5) = 5(x – 3)
4(x + 3) = x + 12
4 – (2x + 5) = (–4x – 2)
5(x + 4) – x = 4(x + 5) – 1

Answers

Answer: 2(x + 2) + 2 = 2(x + 3) + 1

Steps:

2x + 6 = 2x + 7

Subtract 6 from both sides

2x + 6 - 6 = 2x + 7 - 6

Simplify

2x = 2x + 1

Subtract 2x from both sides

2x - 2x = 2x + 1 - 2x

Simplify

0 = 1

The sides are not equal.

NO SOLUTION

Answer:

1, 2, and 5

Step-by-step explanation:

A rectangle has a height of 7 and a width of 2x² –3. Expression should be expanded

14x^2 -21

Answers

[tex]width: 2x^2-3\\height:7\\S=7(2x^2-3)\\S=14x^2-21[/tex]

Ana's class packs lunches for the local shelter. They make the same number of sandwiches each minute. In 5 minutes, the class makes 20 sandwiches. At this rate, how many sandwiches does the class make in 32 minutes?

Answers

Answer: 128

Step-by-step explanation:

Arnold took out a loan of 195,000 to purchase a home. At a 4.3% interest rate compounded annually, how much total will they have paid after 30 years?

Answers

Answer:

25155000

Step-by-step explanation:

we know intrest (i):-PTR/100

by formula

195000×30×4.3%

100

2. 5850000×4.3

100

100

3. 25155000

Arnold will have to pay $689546.98 after 30 years of taking out a loan.

What is compound interest?

The compound interest is a form of interest where the rate of interest is applied on the amount obtained after every interval of time.

The given problem is the case of compound interest.

The values for different parameters are as follows,

P = 195000

r = 4.3%

And t = 30 years

Now, substitute all the corresponding values in the expression for amount given below as,

A = P(1 + r/100)ⁿ

   = 195000(1 + 4.3/100)³⁰

   = 689546.98

Hence, the total amount to be paid after 30 years is given as $689546.98.

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