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Mathematics
OpenStudy (anonymous):

© 2011 Jupiter Images Corporation Answer(Picture included) 40.8° 49.2° 30.2° 59.8°

OpenStudy (anonymous):

OpenStudy (anonymous):

Two birds sit at the top of two different trees 57.4 feet away from one another. The distance between the second bird and a bird watcher on the ground is 49.6 feet. What is the angle measure, or angle of depression, between the first bird and the bird watcher? 40.8° 49.2° 30.2° 59.8°

OpenStudy (turingtest):

|dw:1331666413966:dw|\[\tan x=\frac ab\iff x=\tan^{-1}\frac ab\]

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