SOLUTION: Where did they get the 10 from? I highlighted the portion of the question I am talking about. Here is a photo.
http://i68.tinypic.com/b4swo4.png
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Question 1114102: Where did they get the 10 from? I highlighted the portion of the question I am talking about. Here is a photo.
http://i68.tinypic.com/b4swo4.png
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Where did they get the 10 from? I highlighted the portion of the question I am talking about. Here is a photo.
http://i68.tinypic.com/b4swo4.png
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C(5,2) = 5!/(5-2)!*2!) = 120/(6*2) = 10
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