document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=181881>Question 181881</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0321227573/algebrahomeworkh>College Algebra</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> In electronic, circuit gain is modeled by  G=Bt/R+R1  where R is the value of resistor, t is temperature, R1 is the value of R at a temperture t, and B is a constant.  The sensitivity of the circuit to temperature is modeled by S=BR/(R+R1)^2  If B=3.7 and t is 90K (Kelvin), find the values of R and R1 that will make G = .4 and S =.001.\r<BR>\n" );
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document.write( ".4=3.7(90)/R + R1= 0.4 R1 + 0.4 = 333<BR>\n" );
document.write( ".001=3.7(R)/(R+R1)^2= 0.01R1^2+0.01R+0.02R1=37 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136518 by </B><A HREF=/tutors/aboutme.mpl?userid=vleith><B>vleith(2983)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=vleith><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=136518\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=0.4=3.7%2890%29%2F%28R+%2B+R1%29 ALIGN=MIDDLE  ALT=\"0.4=3.7%2890%29%2F%28R+%2B+R1%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%28R%2BR1%29=+330%2F0.4 ALIGN=MIDDLE  ALT=\"%28R%2BR1%29=+330%2F0.4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R%2BR1+=+832.5 ALIGN=MIDDLE  ALT=\"R%2BR1+=+832.5\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.001=3.7%28R%29%2F%28R%2BR1%29%5E2 ALIGN=MIDDLE  ALT=\".001=3.7%28R%29%2F%28R%2BR1%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=.001=3.7%28R%29%2F%28832.5%29%5E2 ALIGN=MIDDLE  ALT=\".001=3.7%28R%29%2F%28832.5%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.001%2A832.5%5E2%29%2F3.7=R ALIGN=MIDDLE  ALT=\"%280.001%2A832.5%5E2%29%2F3.7=R\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=187.3+=+R ALIGN=MIDDLE  ALT=\"187.3+=+R\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=R1+=+832.5-187.3 ALIGN=MIDDLE  ALT=\"R1+=+832.5-187.3\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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