To measure the takeoff performance of an airplane, the horizontal position of the plane was measured every second, from t = 0 to t = 12. the position in fee were: 0,8.8, 29.9, 62.0, 104.7, 159.1, 222.0, 294.5, 380.4, 471.1, 571.7, 686.8, and 809.2. find the least squares cubic curve y = bo + bit + bzt+ b3t for this data, then use the result to estimate the vel l ana when t= 4.5 seconds.