An opinion poll asked participants if they watched a particular television show. of the 80 participants, 30 were male and 50 were female. there were 45 participants that had watched the show and 35 that had not. only 20 of the male participants had watched the show.

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)