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OpenStudy (anonymous):
of the first 8 questions on a test, a student must answer 6. of the next 7 questions, 4 must be answered. in how many ways can this be done?
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OpenStudy (anonymous):
C(8,6)*C(7,4)
OpenStudy (anonymous):
I'm not quite sure how to do combinations so if someone could possibly explain step-by-step?
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