Terrell wants to drive his car at a speed of 5050 50 miles per hour for 2.752.75 2.75 hours. his car has a fuel efficiency of 2525 25 miles per gallon. how many gallons of fuel does terrell need for his journey?

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)