An angler hooks a trout and reels in his line at 5 in. I s. Assume the tip ofthe shing rod is '13 ft above the water and directly above the angler, and the sh is pulled horizontally directly toward the angler {see gure]. Find the horizontal speed of the sh when it is 20 it from the angler. Let x be the horizontal distance from the angler to the sh and 2 he the length of the shing line, where both x and z are measured in inches. Write an equation relating x and z. D