A triangle has sides measuring 2 inches and 7 inches. If x represents the length in inches of the third side, which inequality gives the range of possible
values for x?
A. 2 B. 5 C. 5 sxs9
O D. 25x57
SUBMIT

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)