A plane flying horizontally at an altitude of 1 mile and a speed of 450 mifh passes directly over a radar station. Find the rate at which the distance from the plane to the station is increasing when it has a total distance of 5 miles away from the station. (Round your answer to the nearest whole number.) x mm A trough is 12 ft long and its ends have the shape of isosceles triangles that are 4 ft across at the top and have a height of 1 ft. If the trough is filled with water at a rate of 15 ft3/min, how fast [in ftfmin) is the water level rising when the water is 9 inches deep? Em