12. Evaluate the integral. [ 2xe 2x2+1 da a. 0.5(e32 -2) b. 1.5 (e35 -(3 ) c. 0.5(e35 -3) d. 0.5(e 3 3 + e 3 ) e. 1.5(e33 + 3 ) 13. Find the value of the integral dx. (x3 + a. N/W e. b. 2 f . w/N w/w w/v . C. al- Alw d. h. 14. Evaluate the definite integral. 2 (x - 8) (x - 9) dx 0 a. 112- b. 1115 c, 113 d. 110- 15. The velocity v (in cm/s) of a rolling ball at time / (in seconds) is recorded below. Find an upper and lower estimate for the distance the ball has traveled during the ten-second interval. 1 2 3 4 5 6 7 8 9 10 V 2.9 6.6 12.1 19.4 28.5 39.4 52.1 66.6 82.9 101