Question 7. 5.4.37 6 of 9 points 0 Points: 0 of 1 11: it The height of an arch above the ground is given by the function y = 13 cosx for - E 5x5 5. What is the average height of the arch above the ground? The average height is (Type an exact answer, using it as needed.) Part 1 of 2 O Points: 0 of 1 The velocity of an object moving along a line is given by v = 3t + 4 ft/s on the interval Ost s 4. the object on [0, 4]. (See part (a) of the figure.) a. Divide the interval [0, 4] into subintervals, [0, 1], [1, 2], [2, 3], and [3, 4]. On each subinterval, assume the object moves at a constant velocity equal to the value of v evaluated at the midpoint of the subinterval and use these approximations to estimate the displacement b. Repeat part (a) for n = 8 subintervals (see part (b) of the figure). Click the icon to view the figures. a. For n = 4 subintervals, the approximate displacement of the object is ft. Figures for (a) and (b) - X (Simplify your answer.) 60 Ty 60- 30- 30- 0-+ 2 (a) (b) Print Done