document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=185507>Question 185507</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 2.	The half-life of aspirin in a person's bloodstream is about 15 minutes.  A person takes a 325 milligram Bayer Aspirin.  <BR>\n" );
document.write( "a.	Find an equation to represent this situation.  Let f(t) be the amount of aspirin (in milligrams) in the bloodstream if t is the number of hours since it entered the bloodstream.\r<BR>\n" );
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document.write( "b.	When will there be no aspirin left in the person’s bloodstream? (Show your algebra.)<BR>\n" );
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document.write( "c.	What is the domain and range for this situation?\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 #139182 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=139182\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The half-life of aspirin in a person's bloodstream is about 15 minutes. A person takes a 325 milligram Bayer Aspirin. <BR>\n" );
document.write( "a. Find an equation to represent this situation. Let f(t) be the amount of aspirin (in milligrams) in the bloodstream if t is the number of hours since it entered the bloodstream.<BR>\n" );
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document.write( "f(t) = f(0)(1/2)^(t/(1/4))<BR>\n" );
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document.write( "b. When will there be no aspirin left in the person’s bloodstream? (Show your algebra.)<BR>\n" );
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document.write( "325(1/2)^(4t) = 0<BR>\n" );
document.write( "(1/2)^(4t) = 0<BR>\n" );
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document.write( "There is no solution as no power of (1/2) is equal to zero.<BR>\n" );
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document.write( "c. What is the domain and range for this situation?<BR>\n" );
document.write( "Domain : t >= 0<BR>\n" );
document.write( "Range: 0 < f(t) <= 325<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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