The volume of cone is double of the volume of cylinder.
Further explanation:
We have to find both volumes first to compare the volumes of both.
Volume of Cylinder:
Given
Diameter = d = 8 inches

Height of cylinder=h=3 inches

Volume of Cone:
Radius=r=4 inches
Height of cone= h= 18 inches

We can see that

The volume of cone is double of the volume of cylinder.
Keywords: Volume, Volume of cone
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The value of x is 1 & y is 2 (a).
Steps are attached.
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Before i answer what grade are you in because this answer goes up to different grade levels like 5th grade through 12th grade.
Answer:
The sample required is 
Step-by-step explanation:
From the question we are told that
The standard deviation is 
The margin of error is 
Given that the confidence level is 99% then the level of significance is mathematically evaluated as



Next we will obtain the critical value
from the normal distribution table(reference math dot armstrong dot edu) , the value is

The sample size is mathematically represented as
![n = [ \frac{Z_{\frac{\alpha }{2} } * \sigma }{E} ]^2](https://tex.z-dn.net/?f=n%20%3D%20%5B%20%5Cfrac%7BZ_%7B%5Cfrac%7B%5Calpha%20%7D%7B2%7D%20%7D%20%2A%20%20%5Csigma%20%7D%7BE%7D%20%5D%5E2)
substituting values
![n = [ \frac{ 2.58 * 9 }{2} ]^2](https://tex.z-dn.net/?f=n%20%3D%20%5B%20%5Cfrac%7B%202.58%20%2A%20%209%20%7D%7B2%7D%20%5D%5E2)

Tangency is when a line is fully outside the circle and touches it in one place.
The point of tangency would be point H