document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=34907>Question 34907</A>: <I><SPAN STYLE=\"word-break: break-all;\"> <b>MUST SOLVE USING PERMUTATIONS</b>\r<BR>\n" );
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document.write( "On a bookshelf there are 9 books. In how many ways can you select 4 books to read in order? \r<BR>\n" );
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document.write( "I would greatly appreciate your assistance with this problem. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #21129 by </B><A HREF=/tutors/aboutme.mpl?userid=Earlsdon><B>Earlsdon(6294)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Earlsdon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=21129\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Choosing 4 books out of nine can be expressed by:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=nPr+=+n%21%2F%28n-r%29%21 ALIGN=MIDDLE  ALT=\"nPr+=+n%21%2F%28n-r%29%21\"   DISABLED_style= \"max-width:90%; height:auto;\" > where n = 9 and r = 4<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9P4+=+9%21%2F%289-4%29%21 ALIGN=MIDDLE  ALT=\"9P4+=+9%21%2F%289-4%29%21\"   DISABLED_style= \"max-width:90%; height:auto;\" >=<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=9%21%2F5%21+=+3024 ALIGN=MIDDLE  ALT=\"9%21%2F5%21+=+3024\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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