Philip has 8 books on each of 3 bookshelves, his aunt gives him 3 new books how many books does philip have now ?

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)

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

Asap! i need this done today and i really don’t understand it. some one ! will mark