You and your friends are trying to decide on a movle. You can choose from elght movies, five show times, and four locations. How many combinations are possible?
O 80
O 160
O180
O17

The sum of two numbers is 86, and their difference is 20. find the two numbers

Iam a rectangle. my perimeter is 60 feet. how much are do i cover?

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)