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Adding and subtracting matricesfind the value of each variable. x = and y = would

Astandard deck of cards contains 52 cards. one card is selected from the deck. (a) compute the probability of randomly selecting a seven or king. (b) compute the probability of randomly selecting a seven or king or jack. (c) compute the probability of randomly selecting a queen or spade.

Measures of the angle of r, 31 s (x+4) t (3x+9)