1. a machine can print 300 t-shirts in 10 minutes how many t-shirts can the machine print in 1 minutes 3. a 2 liter bottle is filled completely with water from a faucet in 10 seconds how much water is filled into the bottle each second 4. bill is paid $200 for 5 days of work how much is he paid per day

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)