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3 years ago

Hii guys I'm sorry I am close to failin, and I sorry tay I'm asking a lot for questions :c

Mathematics

2 answers:

Vanyuwa [196]3 years ago

8 0

Answer:

A≈87.96

Step-by-step explanation:

A=2πrh+2πr2

= 2pi(2)(5) + 2pi(2)2

m_a_m_a [10]3 years ago

3 0

Answer:

Hello! answer: 87.92

Step-by-step explanation:

Im a little rusty on these but the answer I believe would be 87.92

2 × 2 × 3.14 = 12.56

4 × 3.14 = 12.56 12.56 × 5 = 62.8

12.56 + 12.56 + 62.8 = 87.92

Hope that helps!

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Answer:

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Step-by-step explanation:

We have to construct a 99% confidence interval for the mean.

A sample of n=7 males is taken. We know the sample mean = 315 watts and the sample standard deviation = 16 watts.

For a 99% confidence interval, the value of z is z=2.58.

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$M-z\sigma/\sqrt{n}\leq\mu\leq M+z\sigma/\sqrt{n}\\\\315-2.58*16/\sqrt{7}\leq\mu\leq 315+2.58*16/\sqrt{7}\\\\315-15.6\leq \mu\leq 315+15.6\\\\299.4\leq\mu\leq 330.6$

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2 years ago

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Answer:

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Step-by-step explanation:

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2 years ago

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3 years ago

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Step-by-step explanation:

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2 years ago

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Step-by-step explanation:

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1 year ago

Hii guys I'm sorry I am close to failin, and I sorry tay I'm asking a lot for questions :c ​

Hii guys I'm sorry I am close to failin, and I sorry tay I'm asking a lot for questions :c