On a given day, the aw rate F {in cars per hour) an a congested roadway is given by the equation below, where v is the speed of trafc In miles per hour. If F = 2 20 + now What speed will maximize the ow rate on the mad? (Round your answer to one decimal place.) Em Solve the differential equation. g'(x) = 12x , g(0) = -5 g(x) =Use the information to find and compare Ay and dy. (Round your answers to three decimal places.) y = 0.4x x = 1 Ax = dx = 0.1 Ay = dy =