Ask question

Ask question

All categories

3 years ago

12

circle A has an area of 254.469 square units. What is the circumference of circle A? Round your answer to the nearest hundredth,

if necessary.

2 answers:

andrey2020 [161]3 years ago

8 0

C=2πr
when area is given use this formulae C=2 sqrt (πA)=56.55
hope this helps

REY [17]3 years ago

7 0

A = r² π
254.469 = r² π
r² = 254.469 : 3.14159
r² = 81.00866
r = 9.0048
C = 2 r π = 2 * 9.0048 * 3.14159 = 56.55 units

You might be interested in

In 1980, Ric was twice as old as Nancy who was as old as Manual. In 1992, Ric, Nancy and Manual’s ages added up to 78 years. How

myrzilka [38]

He was 21 in 1980,
There are twelve years in between them all so you subtract 36 from 78 and since he was double as old as Nancy, and Manual was the same age as her, you would divide 42 into two parts, Ric and the 10.5 year olds, and Ric would be 21 in 1980.

6 0

3 years ago

What is the simplified form of –9m–2n5 × 2m–3n–6?

maxonik [38]

Your answer would be -18m-6n-30

5 0

3 years ago

If 12 key chains cost $35.35, what is the cost of 20 key chains

alina1380 [7]

Answer:

The key chain's are 0.75 each

Step-by-step explanation:

3 0

2 years ago

What is the radius of the following circle?

lara [203]

Answer:

The radius is: $2\sqrt{3}$

Step-by-step explanation:

The equation of a circle in center-radius form is:

$(x - h)^2 + (y - k)^2 = r^2$

Where the center is at the point (h, k) and the radius is "r".

So, given the equation of the circle:

$x^2+y^2=12$

You can identify that:

$r^2=12$

Then, solving for "r", you get that the radius of this circle is:

$r=\sqrt{12}\\\\r=2\sqrt{3}$

7 0

3 years ago

Read 2 more answers

These scatterplots represent the monthly sales and advertising costs of a company. Which trend line is the best fit for the data

Lunna [17]

Answer:

Option D

Step-by-step explanation

I did the assignment

8 0

3 years ago

Read 2 more answers