document.write( "Question 879874: How many five-letter \"words\" can be made from the letters A,B,C,D,E,F,G,H,I,J if repletion (a)is allowed or (b) is not allowed? \n" ); document.write( "

Algebra.Com's Answer #531170 by Fombitz(32388) $\"\"$ $\"About$

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There are 10 letters available and 5 positions.
\n" ); document.write( "a) $\"+N=10%2A10%2A10%2A10%2A10=10%5E5=100000\"$
\n" ); document.write( "b) $\"N=10%2A9%2A8%2A7%2A6=30240\"$ \n" ); document.write( "

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