Radar station A is tracking an airplane flying at 13,0000 feet above the ground. The ground distance between the plane and the radar station is 25 miles. What is the angle of depression
from the plane to the radar station? Round the answer to the nearest tenth of a degree.

The edge of a cube was found to be 30 cm with a possible error in measurement of 0.4 cm. use differentials to estimate the maximum possible error, relative error, and percentage error in computing the volume of the cube and the surface area of the cube. (round your answers to four decimal places.) (a) the volume of the cube maximum possible error cm3 relative error percentage error % (b) the surface area of the cube maximum possible error cm2 relative error percentage error %