document.write( "Question 203403: How many different ways can a committee of 9 be selected from a larger organization of 20 people?\r
\n" ); document.write( "\n" ); document.write( "I am sure this is a combination problem.\r
\n" ); document.write( "\n" ); document.write( "Which is 9C20=(just Guessing) 20! 20!
\n" ); document.write( " ______ = ________
\n" ); document.write( " 9!(20-9) 9!11!\r
\n" ); document.write( "\n" ); document.write( "20! 20*19*18*17*16*15*14*13*12*11*10*9*8*7*6*5*4*3*2*1
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\n" ); document.write( "9!\r
\n" ); document.write( "\n" ); document.write( "i guess im confused. big numbers.
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Algebra.Com's Answer #153472 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
you're right, just a combination problem\r
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\n" ); document.write( "\n" ); document.write( "20C9 = 20! / [(20 - 9)! * 9!] = 20! / (11! * 9!)\r
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\n" ); document.write( "\n" ); document.write( "there should be a factorial key on your calculator
\n" ); document.write( "___ windows has a built in calculator -- just set it to scientific mode
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