Examine the following expression. p squared minus 3 + 3 p minus 8 + p + p cubed Which statements about the expression are true? Check all that apply. The constants, –3 and –8, are like terms. The terms 3 p and p are like terms. The terms in the expression are p squared, negative 3, 3 p, negative 8, p, p cubed. The terms p squared, 3 p, p, and p cubed have variables, so they are like terms. The expression contains six terms. The terms p squared and p cubed are like terms. Like terms have the same variables raised to the same powers

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)