document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1045990>Question 1045990</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The cost of treating waste by removing PCPs goes up rapidly as the quantity of PCPs removed goes up. Here is a possible model:<BR>\n" );
document.write( "C(q) = 2,200 + 90q2,<BR>\n" );
document.write( "where q is the reduction in toxicity (in pounds of PCPs removed per day) and C(q) is the daily cost (in dollars) of this reduction.<BR>\n" );
document.write( "(a) Find the cost of removing 10 pounds of PCPs per day.<BR>\n" );
document.write( "(b) Government subsidies for toxic waste cleanup amount to<BR>\n" );
document.write( "S(q) = 500q,<BR>\n" );
document.write( "where q is as above and S(q) is the daily dollar subsidy. The net cost function is given by N = C &#8722; S. Give a formula for N(q).<BR>\n" );
document.write( "N(q) = 	<BR>\n" );
document.write( "(c) Find N(20). </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #661639 by </B><A HREF=/tutors/aboutme.mpl?userid=josmiceli><B>josmiceli(19441)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=josmiceli><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=josmiceli><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=661639\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> (a)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+C%28q%29+=+2200+%2B+90q%5E2+ ALIGN=MIDDLE  ALT=\"+C%28q%29+=+2200+%2B+90q%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+C%2810%29+=+2200+%2B+90%2A10%5E2+ ALIGN=MIDDLE  ALT=\"+C%2810%29+=+2200+%2B+90%2A10%5E2+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+C%2810%29+=+2200+%2B+9000+ ALIGN=MIDDLE  ALT=\"+C%2810%29+=+2200+%2B+9000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+C%2810%29+=+11200+ ALIGN=MIDDLE  ALT=\"+C%2810%29+=+11200+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "$11,200<BR>\n" );
document.write( "-----------------------------<BR>\n" );
document.write( "(b)<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+S%28q%29+=+500q+ ALIGN=MIDDLE  ALT=\"+S%28q%29+=+500q+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%7Bq%29+=+C%28q%29+-+S%28q%29+ ALIGN=MIDDLE  ALT=\"+N%7Bq%29+=+C%28q%29+-+S%28q%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%28q%29+=+2200+%2B+90q%5E2+-+500q+ ALIGN=MIDDLE  ALT=\"+N%28q%29+=+2200+%2B+90q%5E2+-+500q+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "---------------------------------<BR>\n" );
document.write( "(c) <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%2820%29+=+2200+%2B+90%2A20%5E2+-+500%2A20+ ALIGN=MIDDLE  ALT=\"+N%2820%29+=+2200+%2B+90%2A20%5E2+-+500%2A20+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%2820%29+=+2200+%2B+90%2A400+-+10000+ ALIGN=MIDDLE  ALT=\"+N%2820%29+=+2200+%2B+90%2A400+-+10000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%2820%29+=+2200+%2B+36000+-+10000+ ALIGN=MIDDLE  ALT=\"+N%2820%29+=+2200+%2B+36000+-+10000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%2820%29+=+2200+%2B+26000+ ALIGN=MIDDLE  ALT=\"+N%2820%29+=+2200+%2B+26000+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+N%2820%29+=+28200+ ALIGN=MIDDLE  ALT=\"+N%2820%29+=+28200+\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "$28,200<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );