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? © 2011 jupiter images corporation answer 40.8° 49.2° 30.2° 59.8°

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Adele is five years older than timothy. in three years, timothy will be 2/3 of adele’s age. what is adele‘s current age?

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0