Question: c. Use the first derivative test to mi 4. (7 pts) Sand is being dumped off a conveyor belt onto a pile in such a

c. Use the first derivative test to mi 4. (7 pts) Sand is being dumped off a conveyor belt onto a pile in such a way that the pile forms in the shape of a cone whose radius is always equal to its height. Assuming that the sand is being dumped at a rate of 10 cubic feet per minute, how fast is the height of the pile changing when the pile is 2 feet tall

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