document.write( "Question 620520: How many five-person committees can be selected from nine people \n" ); document.write( "
Algebra.Com's Answer #390194 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! C(n,r) = (n!)/(r!(n-r)!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = (9!)/(5!*(9-5)!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = (9!)/(5!*4!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = (9*8*7*6*5!)/(5!*4!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = (9*8*7*6)/(4!)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = (9*8*7*6)/(4*3*2*1)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = (3024)/(24)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "C(9,5) = 126\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So the answer is 126 \n" ); document.write( " |