Heather is on vacation at a tropical bay that has three islands. She rents a boat on Island A and plans to navigate to Island C, which is 12 miles away. Based on the figure below, at what angle 0 should she navigate to go to Island C? Island C 12 miles 15 miles 14 miles Island A Island Carry your intermediate computations to at least four decimal places. Round your answer to the nearest tenth of a degree. ?

How far does the tip of a 1.39 m pendulum travel as it swings through an angle of 6.3°? The distance through which the end of the pendulum swings is m. (Simplify your answer. Round to three decimal places as needed.)

.Use the given information to solve the following. Two boats, 2500 feet apart, are sailing on a lake. A helicopter flying directly over one of the boats sights the other boat with an angle of depression of 11°. How high is the helicopter? Round answer to nearest whole number. 99+