The measure of an exterior angle is greater than every angle of the triangle

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 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)

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer