A cylinder has a height of 15 feet and a radius of 20 feet. What is its volume? Use a ~ 3.14 and round your answer to the nearest hundredth.

At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 16 cubic feet per minute. the diameter of the base of the cone is approximately three times the altitude. at what rate is the height of the pile changing when the pile is 12 feet high? (hint: the formula for the volume of a cone is v = 1 3 πr2h.)

In the rectangle below ac=30 units what is de

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