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OpenStudy (anonymous):
There are 20 students on the school's student council. A special homecoming dance committee is to be formed by randomly selecting 6 students from student council. How many possible committees can be formed 120 possible committees 720 possible committees 38,760 possible committees 27,907,200 possible committees
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OpenStudy (anonymous):
take note of the combination formula..
OpenStudy (anonymous):
nCr = n!/(r!(n-r)!
OpenStudy (anonymous):
easier way 6*20
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