In the right triangle shown, A= 30° and AB = 8.
How long is BC?
Answer exactly, using a radical if needed.

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 0 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

What is the ratio fraction form of 25: 9