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What is 11C9? O A. 66 OB. 55 OC. 45 OD. 36
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4 votes
What is 11C9?
O A. 66
OB. 55
OC. 45
OD. 36

User Gustavo Mori
by
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1 Answer

5 votes
11C9 is B. 55

11C9 = 11×10×9×8×7×6×5×4×3 ÷ 9×8×7×6×5×4×3×2. = 55.
User Tsykora
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