(use the formula d=r*t)
( show all your ! )
jorge drives at a rate of 30 miles per hour. how long will it take him to drive 150 miles?
(answer completely, and try to explain what you're doing, to solve it! )
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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)