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kotykmax [81]
3 years ago
10

If a cone-shaped hole is 3 feet deep and the circumference of the base of the hole is 44 feet what is the volume of the hole? Us

e 7 for m or t.
Mathematics
1 answer:
tiny-mole [99]3 years ago
4 0
The formula for finding a volume of a cone is 
V=πr^2h(1/3)
Plug in the values the have given you and solve. 
3.14(7)^2(3)(1/3)
approx. 153.86 cubic ft.
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vova2212 [387]
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3 years ago
What is the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81?
Marizza181 [45]

Answer: d. 1.3333

Step-by-step explanation:

We know that the standard error of a sampling distribution is given by :-

S.E.=\dfrac{\sigma}{\sqrt{n}}

, where \sigma = Population standard deviation.

n= Sample size.

AS per given , we have

\sigma =12

n=81

Then, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 will be :-

S.E.=\dfrac{12}{\sqrt{81}}

=\dfrac{12}{\sqrt{9^2}}=\dfrac{12}{9}\\\\=\dfrac{4}{3}\\\\\approx1.3333

Hence, the standard error of a sampling distribution with a population standard deviation of 12 and the sample size of 81 is 1.3333.

Thus the correct answer is d. 1.3333 .

6 0
3 years ago
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Answer:

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4 0
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Answer:

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Step-by-step explanation:

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