If a parabola with vertex (−2,1) also contains the point (1,6) which point must also be on the parabola?

a. (−3,6)
b. (−5,6)
c. (3,6)
d. (−7,4)

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.