A qiadrilateral has an area of 23.36sq cm. The lengths of perpendicular drawn from the opposite vertices on one of the diagonal of the quadrilateral are 3.2 cm each. Find the length of the diagonal. Tell a method without dividing into triangle
and with dividing into triangle

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.