Question

Suppose that water is being pumped into a trough. the trough is $$15 feet long, and every cross section of the trough is an equilateral triangle, with a vertex of the triangle pointing toward the ground. find the rate of change of the height of the water when the height is $$4 feet, if the volume of water is increasing at a rate of $$8 cubic feet per second.

Answer 1

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