Mrs. Tymes is buying mulch for her flower gardens.
Which option gives her the best price per cubic yard of mulch?
A 3 yd for $165
OB. 4 yd for $240
c. 6 yd for $300
OD 8 yd for $360

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)