Derivatives

1. (20 pts) Let An2 Jay + Ay - 12. Find # if # - 3. 2 - 2 and y - -4 2. (35 pts) Suppose that an island in the Pacific Ocean is perfectly circular. Due to rising se levels, the island's diameter is decreasing at , mi/yr. How fast is the island's area changing (to the nearest tenth) when the diameter of the island is 38 mi? 3//(45 pts) An ice cream machine is filling a waffle cone, whose radius is a third of its height ( important information?) Find how fast the volume is changing (to the nearest hundredth) when the height is 6 cm and growing at a rate of 2 cm/sec. KH