In july paleontologist found 368 fossils at a dig in august she found about 14 fossils a per day is the number of fossils the paleontologist found in august proportional to the number of days she spent looking for fossils that month

What is the average rate of change for this function for the interval from x=2 to x=4 ?

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)

How are algebraic expressions evaluated using substitution?