The radius of circle A is r cm. The radius of circle B is twice the radius of circle A. What difference between the circumference of circle B and circle A (in cm)?​

Answers

Answer 1

9514 1404 393

Answer:

  2πr cm

Step-by-step explanation:

The circumference of a circle of radius r is ...

  C = 2πr

For a radius of (r cm), the circumference is ...

  A = 2π(r cm) = 2πr cm

For a radius of (2r cm), the circumference is ...

  B = 2π(2r cm) = 4πr cm

Then the difference between the circumferences is ...

  B -A = (4πr cm) -(2πr cm) = 2πr cm . . . . difference in circumference


Related Questions

Simplify

8/9
____

5/6

Answers

Answer:  16/15  

decimal: 1.0666

mixed number: 1 1/15

Step-by-step explanation:

5. Find the slope of the following table? ​

Answers

Answer:

25-22. 3

---------- = ---

2-1. 1

slope is equal to 3

I need this solved quick plz!!!

Answers

The second one/ the option b

When using substitution to solve this system of equations, what is the result of the first step x=y+1 4=2x+3y

Answers

The answers in photo below

hepe me please on these​

Answers

Answer:

Note that I put an answer for everything not just the ones you left blank.

(+14) + (+9) = +23

(+6) + (-13) = -7

(-4) + (+1) = -3

(-6) + (+10) = +4

(+14) + (+4) = +18

(0) + (+15) = +15

(0) + (-9) = -9

(+1) + (+24) = +25

(+3) + (-14) = -11

(-24) + (+14) = -10

(+17) + (+14) = +31

(+23) + (+14) = +37

(+14) + (+9) = +23

(+21) + (+21) = +42

(-3) + (+4) = +1

Step-by-step explanation:

(Just a friendly heads-up, you don't have to keep putting the + sign in front of the positive numbers. Numbers without any sign, automatically mean they're positive. It's the negative signs that you need to place a sign.)

Hope this helped :)

Rick and tom share a reward of $75 in a ratio of 2:3. how much money does each of them get?

Answers

Answer:

Rick gets $30 and Tom gets $45.

Step-by-step explanation:

If Rick gets 2 parts, and Tom gets 3 parts, then there are 5 parts. If $75 is split into 5 parts, each part will be worth $15.

Hence,

Rick gets 2 * $15 = $30

Tom gets 3 * $15 = $45

How do you write 3 3/4 as a decimal?

Answers

Answer:
3, 75
Explanation:
You divide the fraction and you put it next to the number

Help me plss ASAP plzzz

Answers

Answer:

begin with 12 and pat has 8 red flowers

Step-by-step explanation:

easy mathz

Answer:

Begin with 12 and there are 8 flowers are red

Step-by-step explanation:

12-4=8

Will mark brainliest for all 4 :)

Answers

Answer:

1=2 weekday  3 weekend

2=4 weekend 8 weekday

3=?

4=3 bleachers 4 lawn

Step-by-step explanation:

Find m angle C
A. 150
B. 140
C. 137
D. 122

Answers

Answer:

The answer is A

hope it helps u

Mrs. Sampson bought 8
packages of clay for a total of $32
for an upcoming art project. At
this rate, how much would 14
packages cost?

Answers

Answer:

$56

Step-by-step explanation:

cost of 8 packages of clay = $ 32

cost of 1 package of clay = 32 / 8 = $4

cost of 14 packages = 14*4 = $ 56

8 in+ 34 in. Round to the correct precision

Answers

It 42 inc hope that helps:)

Answer:

3 feet 6 inches

Step-by-step explanation:

If we add those inches together, we get 42 inches. Turn that to feet (12 in in a foot) and we get 3.5 feet, or 3 feet and 6 inches.

What is 1/4 of 160 calories?

Answers

Answer:

0.4

Step-by-step explanation:

1/4 x 160 / 100

Answer:40 if im right

Step-by-step explanation:

When i do it i ush do it in ÷ so 160 ÷ 1/4th

Evaluate.
(3⋅7)+(5⋅9)
Enter your answer in the box.

Answers

Answer:

21+45 and in total is 66 if u add them up

please mark me brainless

Step-by-step explanation:

Hello!

Answer:

66

Step-by-step explanation:

Hope this helps!

PLZ HELP ASAP! Solve the following equation for x: 4x + 12y = -24

Answers

Answer:

This is impossible

Step-by-step explanation:

Answer: x= -6 - 3y

Step-by-step explanation:

Evaluate the expression 2b + 5 when b = 3

Answers

Answer:

11

Step-by-step explanation:

Step 1:

Since b = 3, substitute 3 into the expression for b

2(3) + 5

Step 2:

2(3) = 6 so the expression is now 6 + 5

Step 3:

6 + 5 = 11

The answer to your problem is 11

For the summer reading club, Xavier is required to read 2 books every week.

What line represents this requirement?


Line a

Line b

Line c

Line d

Answers

Answer:

line c

Step-by-step explanation:

a simple graph of one week equals two books or a slope of 2

Line c because it is going up by two each week.

A pet store has 7 cats. Here are their weights (in pounds).
8, 15, 11, 10, 11, 6, 7
Send data to calculator
Find the mean weight of these cats.
If necessary, round your answer to the nearest tenth.

Answers

Step-by-step explanation:

add 8,15,11,10,11,6,7 then the answer you get divide by 7

Answer:

The answer that has been rounded by the tenths is 9.7

please help me solve this !
will mark brainliest !
(spammers reported)

Answers

Answer:

x=2

Step-by-step explanation:

Please help me answer

Answers

Answer:

Step-by-step explanation:

A

what is the sum of the infinite geometric sequence 2,-1,1/2,1/4,...?
with solution

Answers

The common ratio with the range  

1<r< 1

the formula is  

S=a11−r

We will use this formula because,  

r=12

Sum  

S=a11−r=21−12=4

God bless....I hope the explanation is useful...

2. Change the following into indirect speech.
a. Anupam says, "Where do you live?”

Answers

Answer:

Anupam ask me where l live

hope it's help you (^0^)

A library classifies at DVDS into one of the cater forums shown. The library owns 1555 DVDS. Determine the number of comedy. 31% comedy

Answers

Answer:

482.05

Step-by-step explanation:

31/100 x 1555 = 482.05

This should be the answer, good luck!

what number has 62 ones, 20 ten thousands, and 300 tens

Answers

Answer:

20,326

Step-by-step explanation:

what number has 62 ones, 20 ten thousands, and 300 tens

Hope it helped you brainiest plz and thank you have a great day!!!

The number for the given statement is 203,062.

We need to find what number has 62 ones, 20 ten thousand, and 300 tens.

How to write the number into a word statement?

In general, use words to express numbers zero through nine, and use numerals to express numbers 10 and above. However, there are exceptions to this general guideline for number usage.

Now, 62 ones=62×1=62

20 ten thousand=20×10,000=200,000

300 tens=300×10=3000

Now add all these numbers.

That is, 200,000+3000+62

=203,062

Therefore, the number for the given statement is 203,062.

To learn more about the numbers visit:

https://brainly.com/question/17429689.

#SPJ2

Use function notation to write the equation of the line
please asap

Answers

Answer:

b

Step-by-step explanation:

b

How much money per candy bar is it if theres
4 for 5.50

Answers

An individual bar is 1.375

Which expression is equivalent to 0.7 x 0.23?
OA (7x is) (23 x 1.)
ов.
(7x 10 ) x (23 ×
100
O C.
c. (71) * (23 x *)
O D.
D. (7* *) * (23 x )
What is it

Answers

(7 × 10⁻¹) × (23 × 10⁻²)

Step-by-step explanation:

0.7 × 0.23

= (7 × 10⁻¹) × (23 × 10⁻²)


What is $36.99 in tax and 20% in tip?

Show your work! Please

Answers

The total is with tip $44.38 I don’t know the tax percent so that’s all I can do

christian ran 112.8 ft in 6 minutes. how many feet did christian run in 1 minute

Answers

Answer:

He ran 18.8 ft in 1 minute.

Step-by-step explanation:

Simply divide 112.8 by 6, to get the answer of 18.8, which would be how far he ran in 1 minute.

To check the work you could multiply 18.8 by 6 and it would get you 112.8 . I hope this helps you!

GCF of 27 and 45 and how to solve with either Prime factorization or the step diagram or the tree method help now pls

Answers

Answer:

( 3 x 3 x 3 ) and ( 3 x 3 x 5 )  The GCF of 27 and 45 is 3 x 3 = 9

Step-by-step explanation:

Answer:

9

Step-by-step explanation:

Prime factorization of 27 and 45 is (3 × 3 × 3) and (3 × 3 × 5) respectively. As visible, 27 and 45 have common prime factors. So, the GCF of 27 and 45 is 3 × 3 = 9.

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