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Mathematics, 06.03.2021 02:30 garzacon8822
This exercise refers to a standard deck of playing cards. Assume that 7 cards are randomly chosen from the deck. How many hands contain exactly two 2s and two 9s?
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Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0
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