Q3 (3 points) Suppose that a vehicle's speed is given by the function y - 9 - - in hundreds of km/hr, where t represents the time in hours, with t E [1, 3]. a) Write down a Riemann sum using n rectangles, with right-hand endpoints, to approximate the distance (D) travelled by the vehicle over the two hour period. b) Use your answer in a) to calculate the exact distance travelled by the vehicle. Your answer should include appropriate units