Mary anne went to a bookstore and spent $16.80 on five paperbacks. how much did she spend on each paperback?

If square root x = -7, then x= -49 true or false

The quadratic function h(t)=-16.1t^2+150 choose the graph representation

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)