Mathematics High School

Circle D was dilated to form circle D prime. The diameter of circle D is 5 units and the diameter of circle D prime is 15 units. What is the relationship between the areas of circle D and circle D prime?

Answers

Answer 1

Answer:

A' = 9A

Step-by-step explanation:

Area formula:

A = πd²/4

Area of circle D:

A = π(5²)/4= 25/4π

Area of circle D'

A' = π(15²)/4 = 9*25/4π = 9A

Required relationship:

A' = 9A

Related Questions

How do I find the correct slope on a graph?

Answers

Answer:

To find the slope of a line from a graph, first choose 2 points along the line and write down the X and Y coordinates for each. Next, find the rise by taking the difference between the 2 Y coordinates. If the line slopes up as it moves to the right, the rise will be positive. If it slopes down, the rise will be negative.

Step-by-step explanation:

M=rise/run or y2-y1/x2-x1

I would also use this site called desmos it’s a graphing calculator and it should help if you have multiple choice questions or just need to see a clearer picture

Four-thirds times the sum of a number and 8 is 24. What is the number?
ОА.
40
OB. 26
O C. 24
OD
10

Answers

Answer:

D, 10.

Step-by-step explanation:

10+8=18 4/3x18=24

The answer is 10

Explain: Let’s use “x” to present the number, we have:
4/3(x+8) = 24
x+8 = 24/(4/3)
x+8= 18
x = 10

this is so confusing ngl​

Answers

Answer:

The ornament is 1, the light is 4, the grinch is 12, the hat is 16, and the dog reindeer thing is 48

Use the distance formula to find the distance between the two coordinate point (round to the nearest the third). Coordinates: (-3,-2) and (3,2)

Answers

The distance is 10 units

Plsssss help!!!!!!!!

Answers

Answer:

n=6t

Step-by-step explanation:

6 cars parked per hour

t is the hours

6 is the slope

y=mx+b

n=6t

Hope this helps.

HELP PLEASE ITS SO HARD IM CRYING PLS HELP

Answers

Answer:

I think it might be d

Step-by-step explanation:

Im not completely sure, BUT YOU GOT THIS

Check all that apply please

Answers

Answer:

1, scalene 2, equilateral 3, scalene 4, isosceles

Step-by-step explanation:

‏‏if the scientific notation is 6.1x10^4 what would it look like in standard form? MARKING BRANLIEST!!!!

Answers

Answer:

61,000

Step-by-step explanation:

Move it 4 places to the right.

help me out please :(

Answers

Answer:

45 ft i think im not sure sorry if im wrong

Step-by-step explanation:

tan²A -cot²A = sec²A(1-cot²).Trigonometic Identity​

Answers

your proving is in photo

Rachel split 3/4 pounds of candy among 8 people.

Answers

Answer:

i think 0.09375 or 9/375

Step-by-step explanation:

i divided

Solve each equation mentally for x.

5/2 • x = 1

Your answer must be in the form of a fraction.

Answers

x = 2/5

5/2x2/5=1
good luck

You need to get x by itself to solve

So to get rid of 5/2, you need to multiply both sides by the reciprocal or 2/5...

5/2*2/5 = 1 which we don't write and 1*2/5 =  2/5

So now you'd have x =2/5

If 30% of students failed their last test, and there were 40 students that took the test, how many students failed?

Answers

Answer:

12.

Step-by-step explanation:

30% of 40 is 12. To calculate x% of a number y, we use the following rule: x% of y = (x / 100) × y.

4(-y+3)=2(5-y)
x=?

Merry Christmas

Answers

Answer:

Y=1

Step-by-step explanation:

ㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍㆍ

Answer:

Y = 1

Step-by-step explanation:

logan enjoys taking his dog to the park. he walks doen hickory st. turns into maple ave. to meet his friend, brett, and then continues on maple ave. to the park. what is the approximate distance from bretts house to the park

Answers

Answer:

ummm there is no chart or multiple choice so imma go off a limb here and say  1/2 mile

hope this helps

sorry if its wrong i had no chart

Step-by-step explanation:

Answer:

2 miles

Step-by-step explanation:

he walks to to maple avenue to meet his friend is a mile,so to continue his walk on maple avenue to the park is another mile.


What is the slope of the line?

Answers

Answer:

In technical terms, the slope of the line is the change in y over the change in x. But I just like to think of it as rise over run. To find the slope of the line, pick two points on the line.

The slope of the line is -2/1 or -2. Because instead of rising you are going down -2. If you divide -2 by 1 it would be -2, so your slope is -2.
Hope this helps :)

A square has side length 4 cm.
a. What is its area?

Answers

Answer:

16cm and a 2 as a exponet

Step-by-step explanation:

Answer:

A=16cm²

Step-by-step explanation:

i think 90% sure that its correct

What is the value of -24 + 6?

Answers

Answer:

-18

Step-by-step explanation:

Addition. Hope this helped

Answer:

-18

Step-by-step explanation:

try that, if it's the wrong answer then lmk!

Esmeralda received a bag of jellybeans that contained a mixture of regular flavored jellybeans and "surprise" jellybeans. The bag advertised that 15% of the jellybeans were "surprise" flavors. If she counted 40 jellybeans in the bag, how many should she expect to be the "surprise" jellybeans?

Answers

Answer:

6 jellybean

Step-by-step explanation:

Given that:

Esmeralda received a bag of jellybean the contains regular flavored jelly beans and surprise jelly bean.

Consider the regular flavored jellybean to be = r;  &

The surprise jelly bean.= s

From the bag, there are 40 jellybeans of which 15% is surprise jellybean.

Therefore the number of expected surprise jellybeans is:

= total number of jellybeans × percentage of surprise jellybean

= 40 × (15 /100)

= 6 jellybean

If  6 surprise jellybean is presented in the bag; then the number of regular flavored jellybean = 40 - 6 = 34 regular flavored jellybean

Please Help!
I've solved parts of the equation but I don't understand what to do next :(
Could someone please help me and give an explanation of what do do please!?
Thank you!

Answers

Step-by-step explanation:

please see it my step work solution

question 15: Given l∥m, find the value of x.

Answers

Answer:

x=8

Step-by-step explanation:

the addition of all the angles must equal 360(the 4 angles on the intersection) degrees

125+125=250

360-250=110

110/2=55

7*8-1=55

(2y + 14.6m + 3.8) – (34.8m + 15.6 + 2y)

Answers

Answer:

-20.2m - 11.8

Step-by-step explanation:

20z-8 please helpppp

Answers

Answer:  4(5z−2)

Step-by-step explanation: Brainliest pls

consider the inequality shown.

4x+ax-14>-24

What is the highest integer value of when x=-2

Answers

Answer:22

Step-by-step explanation:

double checking to see if i'm right!

i believe that it's 108 but i'm not too sure!! can anyone tell me?? :))

Answers

Answer:

Yep! That looks right!

Step-by-step explanation:

Solve the following system of equations using substitution.
y = 2x-2
-4x-y = 26

Answers

Answer:

x = -4

y= -10

Step-by-step explanation:

Solving for x

-4x-y = 26

-4x-(2x-2) = 26

-6x+2 = 26

-6x = 24

x = -4

Solving for y

y = 2x-2

y = 2(-4) -2

y= -8-2

y = -10

If m∠13=2x-3 and m∠15=71°, find the value of x.
Show work please

Answers

The value of x is 37

Here ∠13 & ∠15 are corresponding angles , so they are equal [ ∠13 = ∠15 ]

As per the question ,

⇒ 2x - 3 = 71°

⇒ 2x = 71 + 3

⇒ 2x = 74

⇒ x = 74 ÷ 2

⇒ x = 37

Hence , x = 37

25 is 10% of what number?

Answers

Answer: 40

Step-by-step explanation:

This is saying one-fourth, or 25% , of a number x , is equal to 10 . Therefore, 25% of 40 is 10

Answer:

250

Step-by-step explanation:

10%x10=100%

25x10=250

probably not the best explanation but I hope it helps!

The highest score on an algebra test was 42 points more than the lowest. When added together, the lowest and the highest score was 154. Find both the lowest and the highest score.

Answers

Answer:

lowest: 56    Highest: 98

Step-by-step explanation:

When finding all the unknown values in similar right triangles you
have choices: you can use Proportional Relationships or the Pythagorean
Theorem. Which would you use for each of these examples, and why?

Find all the missing sides!

Answers

Answer:

sffsffrdffffgtgttgfftggggfhfffddgddgff

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