document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=295010>Question 295010</A>: <I><SPAN STYLE=\"word-break: break-all;\"> /**************************************************/\r<BR>\n" );
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document.write( "How would you define / describe / calculate the following (you may want to draw a diagram if it is helpful):<ul> <BR>\n" );
document.write( "<li>A. The half-life (t<sub>1/2</sub>) of a drug <BR>\n" );
document.write( "<li>B. What (approximate) percentage of the drug remains after 3 half-lives? </ul><BR>\n" );
document.write( "Yes, I know that I can just write:<ul><BR>\n" );
document.write( "<li>1 = 100%<BR>\n" );
document.write( "<li>2 = 50%   <BR>\n" );
document.write( "<li>3 = 25% & etc,</ul> but what formula do I use to calculate it?\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 #212683 by </B><A HREF=/tutors/aboutme.mpl?userid=richwmiller><B>richwmiller(17219)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=richwmiller><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=richwmiller><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=212683\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (1/2)^n </SPAN>\n" );
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