Two airplanes are flying in the air at the same height Airplane A is flying east at 200 mi h and airplane B is flying north at 250 mi h If they are both heading to the same airport located 120 miles east of airplane A and 50 miles north of airplane B at what rate is the distance between the airplanes changing Enter an exact answer Provide your answer below The distance between the two planes is decreasing at a rate of miles per