A rectangular swimming pool is 40 ft wide by 75 ft long. The table gives depths (d) from x= 0 at the shallow end to the diving end. Use the Trapezoidal Rule with 75 n = 15 to estimate the volume of the pool, V = | 40 - d(x) dx. 0 X 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 d 4 6.2 7.2 7.9 8.5 9 19.5 9.9 10.3 10.7 11.1 11.4 11.7 12.1 12.4 12.7 The volume of the pool is #13. (Round to the nearest integer as needed.)