A person in an apartment building sights the top and bottom of an office building 850 ft. away. The angle of elevation for the top of the office building is 27° and the angle of depression for the base of the building is 53°. How tall is the office building, rounded to the nearest tenth of a foot?

your answer is a

step-by-step explanation:

4*4*4*4=256

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.