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Posted by on Wednesday, April 1, 2009 at 7:58pm.

I got this question wrong on my test, and I have to correct it :/

How many permutations are there of all the letters in the word "TEXAS" ?

The answer to this part is 120, but I have no idea on how to solve the second part without having to write it all down.

*How many of these permutations begin with 2 consonants?

  • alg2/trig - , Wednesday, April 1, 2009 at 8:03pm

    Permutations: 5!

    Permutations with beginning consonants:


  • alg2/trig - , Wednesday, April 1, 2009 at 8:25pm

    Wait... so it's 3 multiplied by 4? Sorry, I'm not used to reading when it's typed out.

  • alg2/trig - , Thursday, April 2, 2009 at 2:45pm

    3 multiplies by 4 factorial.

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