Arecent survey found that 83? % of? first-year college students were involved in volunteer work at least occasionally. suppose a random sample of 13 college students is taken. find the probability that exactly 8 students volunteered at least occasionally.

What are “like terms”? why can we only add like terms?

Which is f(5) for the function –2x2 + 2x - 3?

Adecorative window is made up of a rectangle with semicircles at either end. the ratio of ad to ab is 3: 2 and ab is 30 inches. what is the ratio of the area of the rectangle to the combined area of the semicircles? possible answers: a. 2: 3 b. 3: 2 c. 6: π d. 9: π e. 30: π