Coach wants to know if soccer players who warm up before a game will score more points than those who don’t warm-up. he will break the team up into two groups and make sure each player gets equal time on the field. he will then count out how many points each player makes during the game. what statistic should he study?

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)