Which of the following best describes the expression 7x 2y? the sum of two products; there are two terms the product of two sums; there are two terms the sum of two products; there are four terms the product of two sums; there are four terms

What is the lcm of 16 and 40 ? 24 and 40 ?

Factor the expression using gcf 9b+45

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)