Which best describes the relationship among the volumes of hemisphere X, cylinder Y, and cone Z?

A. The sum of the volumes of X and Y equals the volume of Z.
B. The sum of the volumes of X and Z equals the volume of Y.
C. The difference of the volumes of Z and Y equals the volume of X.
D. The difference of the volumes of X and Z equals the volume of Y.

Consider a bag that contains 220 coins of which 6 are rare indian pennies. for the given pair of events a and b, complete parts (a) and (b) below. a: when one of the 220 coins is randomly selected, it is one of the 6 indian pennies. b: when another one of the 220 coins is randomly selected (with replacement), it is also one of the 6 indian pennies. a. determine whether events a and b are independent or dependent. b. find p(a and b), the probability that events a and b both occur.

Amotorboat maintained a constant speed of 12 miles per hour relative to the water in going 45 miles upstream and then returning. the total time for the trip was 8.0 hours. use this information to find the speed of the current.

X– 4 = 12.5 can be written in words as