The table shows speedometer readings at 10-second intervals during a 1-minute period for a car racing at the Daytona International Speedway in Florida. Time (5) Velocity (mi/h) D 181.9 10 169.0 20 106.6 30 98.8 40 123.5 50 177.1 60 176.6 (a) Estimate the distance (in mi) the race car traveled during this time period using the velocities at the beginning of the time intervals. (Round your answer to three decimal places.) [:1x (b) Give another estimate (in mi) using the velocities at the end of the time periods. (Round your answer to three decimal places.) :1