On average , a dolphin swims at a speed of 8 kilometers per hour for about 15 hours per day. what distance does a dolphin travel per day?

Triangle xyz has vertices x(1,3), y(0,0)

Bring the fraction a/a-4 to a denominator of 16-a^2

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.