document.write( "Question 133028: you have the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, and 0
\n" ); document.write( "You have to find the number of possible solutions for a four digit code.
\n" ); document.write( "numbers can be used more than once
\n" ); document.write( "I tried 10X4 and got 40 but i think its to low
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Algebra.Com's Answer #97244 by checkley71(8403)\"\" \"About 
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THE FIRST DIGIT CAN BE ANY 1 OF 10
\n" ); document.write( "THE SECOND CAN ALSO BE ANY 1 OF 10
\n" ); document.write( "THE SAME FOR THE NEXT 2 DIGITS
\n" ); document.write( "THUS WE HAVE:
\n" ); document.write( "10*10*10*10=10,000
\n" ); document.write( "OR 10^4=10,000 DIFFERENT CODES ARE POSSIBLE.
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