You and a companion are driving a twisty stretch of road in a car with a speedometer but no odometer. To nd out how long this road is, you record the car's velocity at 10second intervals. Time (s) 0 1 0 20 30 40 50 60 Velocity (ftls) 0 26 36 30 37 25 47 Time (s) 70 80 90 100 110 120 Velocity (ft/s) 24 43 33 25 1 5 34 3. Estimate the length of the road using left-endpoint values. :]n b. Estimate the length of the road using rightendpoint values. :ln