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LUCKY_DIMON [66]
3 years ago
13

A local company makes cement posts in the shape of the following three-dimensional composite. The cone and cylinder both have th

e same radius, while the height of the cylinder is 3 times the height of the cone. Which equation can be used to find the total volume of the cement post?

Mathematics
1 answer:
Free_Kalibri [48]3 years ago
8 0

Answer:

Hi, the answer is B. V=10/3pir^2h.

Step-by-step explanation:

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Answer:

a) Margin of error = 166.311

b) sample size ≥ 62

Step-by-step explanation:

Given:

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Sample size = 50 persons

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a) Margin of error = z\frac{\sigma}{\sqrt{n}}

Now for confidence level of 95% z-value = 1.96

Thus,

Margin of error = 1.96\frac{600}{\sqrt{50}}

or

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b) For Margin of error ≤ 150

z\frac{\sigma}{\sqrt{n}} ≤ 150

or

1.96\frac{600}{\sqrt{n}} ≤ 150

or

1.96\frac{600}{150} ≤ √n

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(8Q) Tell whether the function exhibits damped oscillation. If it does, identify the damping factor and tell whether the damping
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Answer:

Option c.

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Step-by-step explanation:

We can easily solve this question by using a graphing calculator or any plotting tool.

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Which can be seen in the picture below

We can notice that f(x) is a cosine with maximum amplitude of  (√11). Neither this factor nor the multiplication of x by 3.7 serve as a damping factor since they are constants.

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Answer:

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