Your cell phone company Offers you a choice between two promotional deals you can either get 500 free text messages with the charge of $.10 for each text message over 500 or you can get 400 text messages with a charge of $.20 for each text message over 400 how many text messages would you have to send for the cost to be the same for either Plan?

What is not true about kl and mn? what is mn? (show )

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.

Non-euclidean geometry was discovered when, in seeking cleaner alternatives to the fifth postulate, it was found that the negation could also be true a. true b. false