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April 28, 2015

Homework Help: Calculus

Posted by Abrich on Saturday, November 24, 2012 at 12:02am.

A water trough is 6 m long, and its cross-section has the shape of an isosceles trapezoid that is 20 cm wide at the bottom, 50 cm wide at the top and 40 cm high. If the trough is being filled with water at the rate of 0.2 cubic meters/min, how fast is the water level rising when the water is 25 cm deep?

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