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tatiyna
3 years ago
5

Solve for pi : C = 2 pi r

Mathematics
2 answers:
Kruka [31]3 years ago
5 0

Answer:

π= C/2r

Step-by-step explanation:

In order to solve for pi, we must get pi by itself on one side of the equation.

C= 2πr

Let's rearrange the right side of the equation. We can do this because of the commutative property of multiplication.

C= 2πr

C= 2r* π

pi is now being multiplied by 2r. The inverse of multiplication is division. Divide both sides of the equation by 2r.

C/2r= 2r*π/2r

C/2r= π

π=C/2r

ycow [4]3 years ago
4 0

Answer:

\frac{C}{2r}=pi

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Step-by-step explanation:

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Step-by-step explanation:

Information provided

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s= 1.186 the sample deviation

\sigma_o =1.34 the value that we want to test

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t represent the statistic  (chi square test)

\alpha=0.01 significance level

Part a

On this case we want to test if the true deviation is 1,34 or no, so the system of hypothesis are:

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t=(n-1) [\frac{s}{\sigma_o}]^2

Part b

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Part c

Replacing the info we got:

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Part d

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