Homework Help: algebra 2 homework check

Posted by jenny on Saturday, May 19, 2012 at 11:05pm.

Tell whether the possibilities should be counted using a permutation or combination. Then find the number of possibilities.

You have a carrying case that holds four CDs. You want to know in how many ways you can place four of the ten CDs you own into the case.

Answer: 10*9*8*7=5040 permutation...

algebra 2 homework check - drwls, Sunday, May 20, 2012 at 1:15am
For the number of combinations, you need to divide that by 4! = 24

There are that many ways of rearranging the same four CDs.
algebra 2 homework check - jenny, Sunday, May 20, 2012 at 12:59pm
Thank you. Boy I was way off!!! I guess I over think things.

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