1.

(1 point) Book Problem 5 (A) Estimate the area under the graph of t) = 54 x2 from :c = 2 to a: = 4 using three approximating rectangles and right endpoints. Estimate = (B) Repeat part (A) using left endpoints. Estimate = ((3) Repeat part (A) using midpoints. Estimate = (1 point) The speed of a runner increased steadily during the rst three seconds of a race. Her speed at half-second intervals is given in the table: t(3) o 0.5 1 1.52 2.5 3 3(ft/S) 1.5 3.9 5.5 8.51013.618 (a) Find a lower estimate for the distance that she traveled during these three seconds. (in) Find an upper estimate for the distance that she traveled during these three seconds