document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=43876>Question 43876</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Solve to four decimal places: 3.9^(m-4)=10.21.\r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #28821 by </B><A HREF=/tutors/aboutme.mpl?userid=longjonsilver><B>longjonsilver(2297)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=longjonsilver><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/cgi-bin/show-face.mpl?user=longjonsilver><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=28821\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> My logs are to base 10:\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3.9%5E%28m-4%29=10.21+ ALIGN=MIDDLE  ALT=\"+3.9%5E%28m-4%29=10.21+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28m-4%29log%283.9%29+=+log%2810.21%29+ ALIGN=MIDDLE  ALT=\"+%28m-4%29log%283.9%29+=+log%2810.21%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+%28m-4%29+=+%28log%2810.21%29%29%2F%28log%283.9%29%29+ ALIGN=MIDDLE  ALT=\"+%28m-4%29+=+%28log%2810.21%29%29%2F%28log%283.9%29%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "m-4 = 1.70713274<BR>\n" );
document.write( "m = 5.70713274<BR>\n" );
document.write( "m = 5.7071 to 4dp\r<BR>\n" );
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document.write( "jon.<BR>\n" );
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