Two balls are drawn in succession out of a box containing 2 red and 4 white balls. find the probability that at least 1 ball was red, given that the first ball was
(a)replaced before the second draw.
b)not replaced before the second draw

The solution set for 5v2 – 125 = 0 is

Abird on top of a 200 ft bridge tower sees a man standing on the lower part of the bridge (which is 50 ft above the ground). the angle of depression from the bird is 26 ̊. how far is the man from the base of the bridge tower? with explanation and pictures .

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in