Determine whether or not open propositions Q(x, y)=x^2-y^2 and P(x, y)=x-y are equivalent or not
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Of the 27 players trying out for the school basketball team, 8 are more than 6 feet tall and 7 have good aim. what is the probability that the coach would randomly pick a player over 6 feet tall or a player with a good aim? assume that no players over 6 feet tall have good aim. a. b. c. d.