A helicopter flying 1,600 feet above the ground spots an airplane flying above. If the horizontal distance between the helicopter and
airplane is 3,055 feet and the angle of elevation is 71°, find the airplane’s altitude.

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?