February 22, 2017

Homework Help: Math; Pre -algebra

Posted by dora on Monday, May 3, 2010 at 6:48pm.

How many 3 letter arrangements can you make while making the first and the third letter one of the 21 constants and the middle letter one of the 5 vowels {a,e,i,o,u} . {two such arrangments to use are KOM and XAX?

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