# A solid consists of a cone on top of a cylinder with a radius equal to that of the cone. The height of the cone is #15 # and the height of the cylinder is #4 #. If the volume of the solid is #18 pi#, what is the area of the base of the cylinder?

The area is

So,

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The area of the base of the cylinder is 6π square units.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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