hot-air balloon is rising vertically. the angle of elevation from a point on level ground 122 feet from the balloon to a point directly under the passenger compartment changes from 17.9 degrees to 29.5 degrees. how far, to the nearest tenth of a foot, does the balloon rise during this period?

29.62 feet far, to the nearest tenth of a foot, does the balloon rise during this period

Explanation:

Hot-air balloon is rising vertically, the angle of elevation from a point on level ground = 122 feet (from the balloon)

The passenger compartment changes from = 17.9 degrees to 29.5 degree

Similarly,

The nearest tenth of a foot, the balloon rise during the period, as below

               69.02 – 39.4 = 29.62 ft.