1/5x-2/3y=30 when y=15

What is the missing constant term in the perfect square that starts with x^2 -20x

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

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.