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olga55 [171]
2 years ago
5

The diameter of a cylindrical construction pipe is7ft. If the pipe is 36ft long, what is its volume?

Mathematics
1 answer:
Svetradugi [14.3K]2 years ago
6 0

Question:

The diameter of a construction pipe is 7ft. If the pipe is 35ft long, what is the volume. (Use 3.14 for pie and round your answer to the nearest cubic foot.)

Answer: V=pir^2h V=3.14*3.5^2*35 V=1346 cu ft

Not fully sure....

But it should be right...

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Answer:

The sample size must be approximately 1067 to get a margin of error of 0.03.

Step-by-step explanation:

We are given the following in the question:

Margin of error = 0.03

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Since, no prior proportions are given, we take

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z_{critical}\text{ at}~\alpha_{0.05} = 1.96

Putting values, we get,

0.03 = 1.96\sqrt{\dfrac{0.5(1-0.5)}{n}}\\\\\sqrt{n} = \dfrac{1.96\times 0.5}{0.03}\\\\\\sqrt{n} = 32.67\\n = 1067.3289\approx 1067

Thus, the sample size must be approximately 1067 to get a margin of error of 0.03.

3 0
4 years ago
Giving that ai +bj 5i-2j are perpendicular find the value of a if b=3​
Nonamiya [84]

Answer:

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Step-by-step explanation:

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6 0
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N76 [4]

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See image

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You are buying lawn seed for the the football field a 10 pound bag of lawn seed covers 2000 square feet.
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7 0
3 years ago
Read 2 more answers
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