document.write( "Question 343177: How many three letter combinations can be made fro the letters in the word MATH? \n" ); document.write( "
Algebra.Com's Answer #245595 by nyc_function(2741)\"\" \"About 
You can put this solution on YOUR website!
We use nCr = n!/r!(n - r)!\r
\n" ); document.write( "\n" ); document.write( "Let n = 4\r
\n" ); document.write( "\n" ); document.write( "Let r = 3\r
\n" ); document.write( "\n" ); document.write( "4C3 = 4!/3!(4 - 3)!\r
\n" ); document.write( "\n" ); document.write( "4C3 = 24/6(1!)\r
\n" ); document.write( "\n" ); document.write( "4C3 = 24/6(1)\r
\n" ); document.write( "\n" ); document.write( "4C3 = 24/6\r
\n" ); document.write( "\n" ); document.write( "4C3 = 4\r
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