document.write( "Question 88720: in how many ways can you make a four-letter password from A, B, C, D, E if you are not allowed to repete characters? \n" ); document.write( "
Algebra.Com's Answer #64474 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! in how many ways can you make a four-letter password from A, B, C, D, E if you are not allowed to repeat characters? \n" ); document.write( "5 ways to select the 1st letter \n" ); document.write( "4 ways to select the 2nd letter \n" ); document.write( "3 ways to select the 3rd letter \n" ); document.write( "2 ways to select the 4th letter \n" ); document.write( "------------- \n" ); document.write( "Total # of ways = 5*4*3*2 = 120 passwords \n" ); document.write( "---------------------- \n" ); document.write( "Another way to get the answer 5P4 = 5!/(5-4)! \n" ); document.write( "---------------------- \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |