A standard deck of 525252 cards contains 444 suits: hearts, clubs, diamonds, and spades. Each suit consists of cards numbered 222 through 101010, a jack, a queen, a king, and an ace. Zhi Qing decides to pick one card at random from a standard deck of 525252 cards. Let AAA be the event that she chooses a three card and BBB be the event that she chooses a seven card. What is P(A\text{ or }B)P(A or B)P, (, A, start text, space, o, r, space, end text, B, ), the probability that the card Zhi Qing chooses is either a three or a seven?

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true

Perry observes the opposite parallel walls of a room in how many lines do the plains containing the walls intersect