Consider the equation of the tractrix y = a sech−1(x/a) − a2 − x2 , a > 0. (a) find dy/dx. dy dx = − a2 x√x+a√−x+a+ x √a2−x2 (b) let l be the tangent line to the tractrix at the point p. when l intersects the y-axis at the point q, show that the distance between p and q is a.

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)