16. which statement is modeled by 2p +5< 11
a. the sum of 5 and 2 times p is at least 11
b. five added to the product of 2 and p is less than 11.
c. two times p plus 5 is at most 11
d. the product of 2 and p added to 5 is 11

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)