Two balls are drawn in succession out of a box containing 3 red and 4 white balls. find the probability that the second ball was red, given that the first ball was:
(a) replaced before the second draw.
(b) not replaced before the second draw.

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Find the value of x. give reasons to justify your solutions! l, m ∈ kn

List x1, x2, x3, x4 where xi is the midpoint endpoint of the five equal intervals used to estimate the area under the curve of f(x) between x = 0 and x = 10.