Amachine drops 74 milliliters of liquid into a beaker every minute. using an empty beaker, sarah started the machine and left the room. when she returned, the beaker had 1,850 milliliters of liquid in it. select the correct operation that can be used to find the time in minutes, m, that sarah was out of the room, and then find the value of m.

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)