Find the unit rate. Enter your answer as a mixed number. A fertilizer covers 3/4 square foot in 1/2 hour. Find the unit rate. Enter your answer as a mixed number. Find the unit rate. Enter your answer as a mixed number. The unit rate is ___ square feet per hour.

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)