Eva was driving down a road and after 4 hours she had traveled 90 miles. At this speed, how many hours would it take Eva to drive 270 miles?
Fill out the table of equivalent ratios until you have found the value of x.
Miles
Hours
90
4
270
т
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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)