document.write( "Question 503945: Mrs. Hernandez wants to put a picture of each of her 3 children on a shelf above her desk. In how many ways can she line up the pictures? \n" ); document.write( "
Algebra.Com's Answer #339458 by oberobic(2304)![]() ![]() ![]() You can put this solution on YOUR website! She has 3 choices for the first position. \n" ); document.write( "But once she makes her choice, she only has 2 choices for the second position. \n" ); document.write( "And once she makes her second choice, she has on 1 choice for the third position. \n" ); document.write( "3*2*1 = 6 \n" ); document.write( "There are 6 ways she can line up the pictures. \n" ); document.write( "As it so happens, this is the definition of 3! (3 factorial). \n" ); document.write( " |