A car’s stopping distance in feet is modeled by the equation d times v is equal to the fraction with numerator 2 point 1 5 v squared and denominator 58 point 4 f where v is the initial velocity of the car in miles per hour and f is a constant related to friction. If the initial velocity of the car is 47 mph and f is equal to 0 point 3 4 , what is the approximate stopping distance of the car?