5. GEOGRAPHY Stephan is standing on a mesa at the Painted Desert. The elevation of
the mesa is about 1380 meters and Stephan's eye level is 1.8 meters above ground. If
Stephan can see a band of multicolored shale at the bottom and the angle of depression
is 29º. about how far is the band of shale from his eyes? Round to the nearest meter.

Secant be and cf intersect at point d inside a what is the measure of cde

Which of the following is a solution of z^6 = 64i? 2(cos105° + isin105°) 2(cos120° + isin120°) 2(cos135° + isin135°) 8(cos15° + isin15°)

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.