A water trough is 800 cm long and a cross-section has the

Last updated: 7/15/2022

A water trough is 800 cm long and a cross-section has the shape of an isosceles trapezoid that is 40 cm wide at the bottom, 90 cm wide at the top and has a height of 50 cm. If the trough is being filled with water at the rate of 18000 cm³/min, how fast (in cm/min) is the water level rising when the water is 30 cm deep? Note: Round to the nearest thousandth.