Look at the figure below:

Triangle CDE has measure of angle CDE equal to 90 degrees. A is a point on the hypotenuse EC such that the segment DA is perpendicular to EC. B is a point outside the triangle on the right of C so that triangle ABC has the measure of angle ABC equal to 90 degrees.

Which triangle is similar to triangle EAD?

Triangle BAC
Triangle DAC
Triangle ABC
Triangle CDE

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.