document.write( "Question 415616: how many permutations can be made from selecting 4 college courses out of 10\r
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\n" ); document.write( "\n" ); document.write( "and i had some trouble understanding,
\n" ); document.write( "four students can choose to write on one of 5 essay topics for their english class .\r
\n" ); document.write( "\n" ); document.write( "how many different essays can the student write without repetition of the topics?
\n" ); document.write( "how many different essays can the student write with repetition of the topics?
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Algebra.Com's Answer #291325 by stanbon(75887)\"\" \"About 
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how many permutations can be made from selecting 4 college courses out of 10
\n" ); document.write( "10P4 = 10*9*8*7 = 5040
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\n" ); document.write( "four students can choose to write on one of 5 essay topics for their english class. how many different essays can the students write without repetition of the topics?
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\n" ); document.write( "Ans: 5*4*3*2 = 120
\n" ); document.write( "The assumption here is that order makes a difference.\r
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\n" ); document.write( "how many different essays can the students write with repetition of the topics?
\n" ); document.write( "5^4 = 625
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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