2 years ago

The area of a circle is 25π in². What is the circumference, in inches? Express your answer in terms of \piπ.

Mathematics

2 answers:

Morgarella [4.7K]2 years ago

8 0

Answer:

10π

Step-by-step explanation:

A = πr^2

C = 2πr

$\sqrt{25}$ = 5
5 = r
2 * 5 = 10
C = 10π

Elza [17]2 years ago

6 0

The answer is 10 Pi. Sorry I can’t show work

You might be interested in

Which equations show that the set of whole numbers is closed under multiplication?

irina1246 [14]

C and D.............................

3 0

3 years ago

(08.01)

Aleksandr-060686 [28]

The list is needed in order to solve the problem, Im sorry but I can’t do anything with this information

5 0

2 years ago

A teacher claims that the proportion of students expected to pass an exam is greater than 80%. To test this claim, the teacher a

erica [24]

Answer:

z=-1.591

Step-by-step explanation:

Null Hypotheses,

$H_0 : p=0.8\\H_a: p>0.80$

So we use z-test for one population proportion (right-tailed test)

According to this informaton, we defined that

$\alpha=0.05$

$z_c=1.64$ (critical value)

So our Rejection region is $R={z:z>1.64}$

$z=\frac{\bar{p}-p_0}{\sqrt{p_0(1-p_0)/n}} = \frac{0.755-0.8}{\sqrt{0.8(1-0.8)/200}}=-1.591$

Not rejection.

6 0

3 years ago

Which is the graph of f(x) = 2(3)x

hammer [34]

The graph of f(x)=2(3)x would look like this

7 0

2 years ago

There are three numbers for the combination to the store’s safe. The first number is 17. The other two numbers can be multiplied

dlinn [17]

Answer:

Step-by-step explanation:

7 0

3 years ago