February 28, 2017

Homework Help: College Finite

Posted by Emily on Wednesday, January 23, 2013 at 10:00pm.

A student wants to buy 3 CDs, but assume that there are 3 CDs featuring the piano, 5 CDs featuring the trumpet, and 3 CDs featuring the saxophone. In how many ways can the selection be made if CD's featuring at least 2 different instruments are selected?

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