The area of the largest cross section of a sphere and the circumference of the sphere are in the ratio 4 : 1. The radius of the sphere is
cm. The circumference of the sphere is about
cm. The area of the largest cross section is about
cm2. The volume of the sphere is about
cm3.

Which is a reasonable estimate of the amount of water in a small, inflatable pool used by children?

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

Abag contains 3 red marbles, 2 blue marbles, and 2 green marbles. one marble is picked, then another marble. assume that the selections are made with replacement. a) find the probability of picking two red marbles with replacement. b) find the probability of picking a red marble and a blue marble. assume the selections are made without replacement. c) find the probability of picking two red marbles without replacement. d) find the probability of picking a red marble and a blue marble without replacement.