WebTwo cards are chosen in order from a deck. In how many ways can this be done if a) the first card must be a spade and the second must be a heart b) both cards must be spades? a) 13 spades x 13 hearts = 169. b) 13 spades x 12 spades = 156. What is a Permutation. A set of objects in which order does matter. WebCheck out our bricklayers ties selection for the very best in unique or custom, handmade pieces from our shops.
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