The coach has 4 positions to fill on her softball team. There are 11 girls who are interested in being on the team.
How many combinations of the four positions can she choose for her team?
A. 340
B. 330
C. 44
D. 15
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hey mate
no of girl selected by coach = ¹¹C⁴
= 11!/(11-4)!.4!
= 11×10×9×8×7!/7!.4×3×2×1
=. 11×10×3 = 330
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question, how come my pascal's triangle was wrong
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