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

Lisa estimates the product 351 x 34 is more than 10,000. Gene disagrees. He estimates the product is less than 10,000. Whose estimate is better?

Answers

Answer:

Lisas

Step-by-step explanation:

You have to multiply 351X34

then you subtract 10,000, 10,000

4325 as a product of its prime factors

Answers

Answer:

5*5*173=4325

Step-by-step explanation:

please mark brainiest hope it works out for you

Answer:

5²×173

Step-by-step explanation:

4325 as a product of its prime factors

5²×173

Round 607.5 to the nearest whole number.

Answers

608

607.5

.5 rounds up to 1

607+1=608

Answer:

608

Step-by-step explanation:

607.5 on a number line would be round 608

because 5 is rounded to 10  like that

Apply sam technique

Kim bought a blouse for $17.16, a skirt for $28.19, and a purse for $35.14. The sales tax was 12%. If she hands the clerk a $100 bill how much will she get back?

Answers

Based on the cost of her items, if Kim hands over $100, she will get back $9.85.

The total that Kim will pay includes the cost of all three items as well as the sales tax.

The total cost of the three items is:

= Blouse + Skirt + Purse

= 17.16 + 28.19 + 35.14

= $80.49

The total including the sales tax will be:

= Cost + (Cost x Sales tax)

= 80.49 + (80.49 x 12%)

= $90.15

The change she will get is:

= 100 - 90.15

= $9.85

In conclusion, Kim will get a change of $9.85.

Find out more at https://brainly.com/question/13706696.

If DG≈FG,DE=3v, and EF=v+48, what is the value of v?

Answers

Answer:

Step-by-step explanation:

As DF is perpendicular to EG and DG = FG, then the two triangles are congruent and therefore DE will equal FE

DE = FE

3v = v + 48

2v = 48

  v = 24

Mindy's dog, Rex, weighed 80 pounds a year ago. Now he weighs 92 pounds. What is the percent increase in his weight?
A.
16%
B.
15%
C.
12%
D.
13%

Answers

Answer:

b.15%

Step-by-step explanation:

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.

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A group of friends paid a total of 50.24 for tickets to the museum each friend pay the same amount for a ticket how much did each friend pay for a ticket to the museum

Answers

Answer:

50.24 ÷ number of people

Step-by-step explanation:

When you divide the total cost by the number of people there are, you will get the amount of money each person paid. Hope this helps!


4. Two pairs of related (x, y) values for a function are (-3, 9) and (-1, 13).
Find the slope and y-intercept, and write the equation of the function.
equation: __
slope: __
y-intercept: __



Answers

Step-by-step explanation:

Find the slope:

m = (13 - 9)/( - 1 + 3) = 4/2 = 2

Find the y-intercept:

9 = 2(-3) + b9 = -6 + bb = 9 + 6b = 15

The equation is:

y = mx + by = 2x + 15
(-3,9)(-1,13)

Slope

m=13-9/-1+3m=4/2m=2

Equation in point slope form

y-9=2(x+3)y-9=2x+6y=2x+15

Y intercept=15

Two trains leave towns 840 miles apart at the same time and travel toward each other. One train travels 20 mi/h slower than the other. If they meet in 5 hours what is the rate of each train?

Answers

CHIPOTLE, CHICK-FIL-A, BURGER KING, MCDONALDS… ETC. fathdhbudRhfyjufik__ 840

What plus what equals -8 ?

Answers

Answer:

-4+-4

Step-by-step explanation:

Two number whose sum equal to - 8 are - 11 and 4.

We have to given that,

To find two numbers whose sum equal to - 8.

Now, Let us asume that,

Two numbers are - 11 and 4.

Sum of both numbers are,

- 11 + 4

= - 8

Hence, Two number whose sum equal to - 8 are - 11 and 4.

Learn more about the addition visit:

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Alejandra quiere comprar lápices de color verde y morado. Los lápices verdes van en cajas de 100 unidades, mientras que los morados van en cajas de 40.¿Cuál es el mínimo número de cajas de cada color que debe comprar Alejandra para tener el mismo número de lápices de ambos colores?

2 CAJAS
3 CAJAS
4 CAJAS
5 CAJAS

Answers

Umm I can’t understand it

What is the graph of y <= 5x + 2?

Answers

Here is the graph! Hopes this helped

Question
A square has an area of 81 square inches. How long are its sides?



Someone please I need help ASAP !!

Answers

Hi,

Since to find the area you multiply the sides, I did the square root of 81 which is 9 therefore each side must equal 9 as 9x9=81

Hope this helps !

Answer:

Step-by-step explanation:

it is like 9x9=81

but yeah like he said it is a square so all sides are the same

but that is if you want to find the parameter

this question is talking about area

so when a question gives you an area you ask yourself what can be multiplied by what in order to give me the area

or since all sides are the same like he said you could just do simple division and do 81/9 which will =9

and since the question mentions that the area is in square inches it is obvious that the answer would be put in inches

answer: 9 inches

can someone help me with this quickly please

Answers

Plug in -3 for f(x) into the first equation.

-3 = x^2 - 5x + 3

x^2 - 5x + 6 = 0

Factor!

(x - 3)(x - 2) = 0

Set each binomial equal to 0 to get the x-value of the point.

x = 3

x = 2

Plug each x-value back into the first equation (the answer should be -3, though it's always good to check) to get the y-value.

(3)^2 - 5(3) + 3

9 - 15 + 3

-6 + 3

-3

(2)^2 - 5(2) + 3

4 - 10 + 3

-6 + 3

-3

Ordered pairs of the solutions for this system of equations: (2, -3) and (3, -3)

Hope this helps!! :)

Find a primitive Pythagorean triplet (a, b, c) where c=a+50.

Answers

Answer:

Pythagorean triple (PT) can be defined as a set of three positive whole numbers that perfectly satisfy the Pythagorean theorem: a2 + b2 = c2.

theorem: a2 + b2 = c2.

This set of numbers are usually the three side lengths of a right triangle. Pythagorean triples are represented as: (a, b, c), where, a = one leg; b = another leg; and c = hypotenuse.

There are two types of Pythagorean triples:

Primitive Pythagorean triples

Non-primitive Pythagorean triples

Primitive Pythagorean triples

A primitive Pythagorean triple is a reduced set of the positive values of a, b, and c with a common factor other than 1. This type of triple is always composed of one even number and two odd numbers.

For example, (3, 4, 5) and (5, 12, 13) are examples of primitive Pythagorean triples because each set has a common factor of 1 and also satisfies the

Step-by-step explanation:

Pythagorean theorem: a2 + b2 = c2.

(3, 4, 5) → GCF =1

a2 + b2 = c2

32 + 42 = 52

9 + 16 = 25

25 = 25

(5, 12, 13) → GCF = 1

a2 + b2 = c2

52 + 122 = 132

25 + 144 = 169

169 = 169.

hope you all like this answer.

mark this answer as brainlist.

rate this answer quys.

Thank you ❤️.

tan(-x) cos(-x) =

Simplify the expression

Answers

Answer:

- sin (x)

Step-by-step explanation:

hope this helps :)

Answer:  tan(-x) cos(-x) = -sin(x)

Step By Step Explanation:

tan(-x) cos(-x)

Use the negative angle Identity to get:

Cos (x) (-tan(x))

Remove the parenthesis to get:

-Cos (x) tan (x)

Express with sin,cos to get:

-sin(x)

I got my explanation from www.symbolab.com

https://www.symbolab.com/solver/simplify-calculator/tan%5Cleft(-x%5Cright)%20cos%5Cleft(-x%5Cright)%20%3D?or=input

,  Hope this Helps :)

Have a great day!!

Add 2/5 + 3/6 + 1/4 0 1 11/60 O 13/20 o 17/20 1 13/60 ​

Answers

Answer:

Step-by-step explanation:

-(8/11)/(-3/5) = -(8/11)*(-5/3)

-(8/11)*(-5/3) = 40/33  [ or 1 7/33]

I can't interpret the rest of the question.  I see:

"Add 2/5 + 3/6 + 1/4 0 1 11/60 O 13/20 o 17/20 1 13/60"

4 consecutive integers of 182

Answers

44,95,96,97

Step-by-step explanation:

first just do gcf and find your numbers with x

At what values of the variable a is the value of the expression a (a + 5) greater than the value of the expression a (a - 4)?

Answers

Answer:

every number that is less than -1

Step-by-step explanation:

Factories 16xy*2 +10xy

Answers

Answer:

[tex]16x {y}^{2} + 10xy \\ = 2xy(8y + 5) \\ 2xy = 0 \: or \: 8y + 5 = 0 \\ y = - \frac{5}{8} [/tex]

The domain of a function h(x) is x≤-2, and the range is y<1. What are the domain and range of its inverse function, h^-1(x)

Answers

Using it's concepts, it is found that the domain and the range of the inverse function are given as follows:

The domain is x < 1.The range is [tex]y \leq 2[/tex].

What are the domain and the range of a function?

The domain of a function is the set that contains all the values of the input.The range of a function is the set that contains all the values of the output.

In an inverse function, the domain and the range are exchanged, hence, considering the original function, for the inverse function we have that:

The domain is x < 1.The range is [tex]y \leq 2[/tex].

More can be learned about domain and range at https://brainly.com/question/10891721

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If 10 plums can be bought for 80p, what will be the cost of three plums

Answers

Answer:

3 plums = 24p

Step-by-step explanation:

10 plums = 80p   /  3 plumps = ?p

Divide 80 by 10: 1 plum = 8p

Multiply by 3: 8*3 = 24p

Total cost of 3 plums : 24p

How do I solve systems of equations?

y=5x-8 5y=2x+6

Answers

Answer:

y=5x-8 , 5y=2x+6

y=5x-8 , y=2x+6-5

y=5x-8 , y=2x+1

y=3x , y=3x

Step-by-step explanation:

we checkout the equation and put the common factors then solve

Alex and her friends went out to lunch at the diner. The bill for lunch was $34.56 which included an 8% sales tax. How much was the price of the lunch before tax? ​

Answers

Answer:

34.48

Step-by-step explanation:

8% as a decimal is 0.08

34.56 - 0.08 = 34. 48

The number of words Latisha can text, y,
varies directly with x, the number of
minutes spent texting. If Latisha texted 180
words in 5 minutes, find k, the constant of
proportionality.

Answers

Answer for A it’s 24

solve pls brainliest

Answers

Answer:

x = 45

Step-by-step explanation:

JKL = MKL + JKM

80 = 35 + x

x = 80 - 35

x = 45

I hope I helped you^_^

Solve for c.
-2c + -6 = 2
C =

Help is highly appreciated thank u

Answers

Answer:

c= -4

Step-by-step explanation:

Ross sold b boxes of cookies, and gabby sold 35 boxes of cookies. Together they sold a total of 69 boxes of cookies

Answers

69-35 = 34
the answer is b=34

Isabel pays a total of $50.00 for every 18 shirts she has dry-cleaned. Which 1 point
graph models a relationship with the same unit rate where x shirts are dry
cleaned for a total of y dollars. *

Answers

Answer should be a. The slope has to be rise over run starting from the origin so the rise would be 50 over 18. A slope of about 2.7 should be the correct graph
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