document.write( "Question 726817: How many three-letter \"words\" can be made from the 9 letters FGHIJKLMN if repetition of letters:
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document.write( "(a) Is allowed?
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document.write( "Your answer is :729
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document.write( "(b) Is not allowed?
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document.write( "Your answer is : 504 \n" );
document.write( "
Algebra.Com's Answer #444805 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! 9^3=729 ans. with repeats. \n" ); document.write( "9*8*7=504 ans. no repeats. \n" ); document.write( " |