Speedometer readings for a vehicle (in motion) at 3-second intervals are given in the table. t (sec) 0 3 6 9 12 15 18 v (ft/s) 0 9 31 56 71 68 50 Estimate the distance traveled by the vehicle during this 18-second period using a left sum L6, a right sum R6 , and a middle sum M3. L6 = 705 feet R6 = 855 feet M3 = 474 x feet Question Help: Video Add Work