document.write( "Question 1057343: Supposed that in a certain association,there are 12 elected members of the board of directors.In how many ways can a president,a vice president,a secretary,and a treasurer be selectes from the bored? \n" ); document.write( "
Algebra.Com's Answer #672398 by solve_for_x(190) ![]() You can put this solution on YOUR website! Since the positions are titled (i.e. president, vice president, etc), the order matters. Thus \n" ); document.write( "this is a problem involving permutations.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The number of permutations of 4 items, selected from a pool of 12 items is:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Another way to look at this is that there are 12 possible selections for president, \n" ); document.write( "and then 11 possible selections for vice president, and then 10 possible selections \n" ); document.write( "for secretary, and finally 9 possible selections for treasurer. Combining all four \n" ); document.write( "selections gives:\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "12 * 11 * 10 * 9 = 11,880 possible arrangements. \n" ); document.write( " |