document.write( "Question 729775: Hello, having issues with this question, please help.\r
\n" ); document.write( "\n" ); document.write( " Using the digits 0 – 9, find out how many 4 digit passcodes (Like 0056 or 3984) can be configured based on the stated conditions.\r
\n" ); document.write( "\n" ); document.write( " The passcode can't start with a 0, a 1, or a 2 and no digits may be repeated.
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Algebra.Com's Answer #446232 by fcabanski(1391)\"\" \"About 
You can put this solution on YOUR website!
There are 7 possibilities for the first digit.


\n" ); document.write( "Since digits cannot repeat, there are 10-1 possibilities for the second digit (you've already used one for the first digit).


\n" ); document.write( "There are 10-2 possibilities for the 3rd digit.


\n" ); document.write( "There are 10-3 possibilities for the 4th digit.


\n" ); document.write( "7*9*8*7 = 3528 possible pass codes. \n" ); document.write( "

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