Atest contains 35 quetions worth a total of 100 points. there are seven-point questions and two-point questions. how many two-point questions are tere? how many seven-point questions? assign two variables. and two equations ! you ! for yalls

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)