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JulsSmile [24]
3 years ago
5

Find the area of the circle d=10 in 62.80 in^2 ,15.70^2, 314.00in ^2, 78.50in^2, 31.40 in2

Mathematics
2 answers:
bonufazy [111]3 years ago
8 0

Answer:

Step-by-step explanation:

svetoff [14.1K]3 years ago
3 0

Step-by-step explanation:

In order to find the area, we need to find the radius. In order to find the radius, we need to divide 10 by 2 because the radius is half of the diameter.

10 ÷ 2 = 5

A=r^2\pi

A=(5)^2\pi

A=25\pi

A=78.5

So, the area of the circle (given that the diameter is 10) is 78.50 in².

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Answer:

A.)

H0: μ ≤ 31

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C.)

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D.)

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Step-by-step explanation:

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The decision region :

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Since Pvalue is greater than α ; then, we fail to reject the Null ;

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B.)

H0: μ ≥ 16

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One sample t - test

C.)

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. The direction of the sign in the alternative hypothesis signifies the type of test or tht opposite direction of the sign in the null hypothesis.

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d.)

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3 years ago
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Answer:

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