An observer (O) is located 500 feet from a school (S). The observer notices a bird (B) flying at a 39 angle of elevation from his line of sight. how high is the bird flying over the school ? You must show all your work and calculations to receive full credit

Write the expression as a constant , a single trigonometric function, or a power of a trigonometric function. sin x cos x/ tan x

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.

Nikita wants to apply for student aid to fund her college education. arrange the steps involved in nikita’s application for financial aid