Asurvey of 1500 subscribers to a certain news paper revealed that 1350 people subscribe to the daily morning edition and 750 subscribe to both the daily and the sunday editions. how many subscribe to the sunday edition? people how many subscribe to the sunday edition only? people

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)