Friday
April 18, 2014

Homework Help: Algebra

Posted by Tiff on Friday, June 12, 2009 at 10:30pm.

It's been so long since I've donw combinations, and now I have a question about them in my algebra homework packet. Question is....Marcie has a collection of 9 DVDS. She will choose 4 of them to take in the car to watch during a long trip. How many combinations of 3 DVDS can Marcie take from her collection ? 504, 252, 168, or 84 ?

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