8. [-/4 Points] DETAIL LARCALCET7 3.7.020. A trough is 12 feet long and 3 feet across the top (see figure). Its ends are isosceles triangles with altitudes of 3 feet. 2 113 min 12 1 3 It (a) If water is being pumped into the trough at 2 cubic feet per minute, how fast is the water level rising when his 1.1 feet deep? ft/min (b) If the water is rising at a rate of 3/8 inch per minute when h = 2.5, determine the rate at which water is being pumped into the trough. ft /min Need Help? Road It