document.write( "Question 1148640: how many different id cards can be made if there are four digits on a card and no digit can be used more than once \n" ); document.write( "

Algebra.Com's Answer #769990 by ikleyn(52781) $\"\"$ $\"About$

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document.write( "10*9*8*7 different ID cards, under the given conditions.\r\n" );
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