document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=466204>Question 466204</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If A = {a, b, c, d} and B = {1, 2, 3, 4}, how many different one-to-one correspondences     <BR>\n" );
document.write( "    can be made? 4<BR>\n" );
document.write( "I answered four but I don't know if my above answer is correct? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #319522 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=319522\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A = {a, b, c, d} and B = {1, 2, 3, 4}, how many different one-to-one correspondences <BR>\n" );
document.write( "can be made? 4<BR>\n" );
document.write( "I answered four but I don't know if my above answer is correct?<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "a can be matched with 4 choices<BR>\n" );
document.write( "b can be matched with 4 choices<BR>\n" );
document.write( "c same<BR>\n" );
document.write( "d same<BR>\n" );
document.write( "---<BR>\n" );
document.write( "# of possible one-to-one matces = 4^4 = 256<BR>\n" );
document.write( "================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );