document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732727>Question 732727</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A long straight river, 100 meters wide, is flowing at 1 meter per sec. A pollutant is entering the river at a consistent rate from one of its banks. As the pollutant disperses in the water, it forms a plume that is modeled by the equation y= the sqare root of x.<BR>\n" );
document.write( "How wide is the plume at 25 meters?<BR>\n" );
document.write( "How wide is it at 100 meters?<BR>\n" );
document.write( "How far down from the river source does the pollutant plume reach halfway across the river?<BR>\n" );
document.write( "How far down the river does the plume reach the other side?<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 #448008 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=448008\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A long straight river, 100 meters wide, is flowing at 1 meter per sec. A pollutant is entering the river at a consistent rate from one of its banks. As the pollutant disperses in the water, it forms a plume that is modeled by the equation y= the sqare root of x.<BR>\n" );
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document.write( "How wide is the plume at 25 meters?<BR>\n" );
document.write( "y = sqrt(25) = 5 meters.<BR>\n" );
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document.write( "How wide is it at 100 meters?<BR>\n" );
document.write( "y = sqrt(100) = 10 meters<BR>\n" );
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document.write( "How far down from the river source does the pollutant plume reach halfway across the river?<BR>\n" );
document.write( "Solve: 50 = sqrt(x)<BR>\n" );
document.write( "x = 2500 meters<BR>\n" );
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document.write( "How far down the river does the plume reach the other side?<BR>\n" );
document.write( "Solve: 100 = sqrt(x)<BR>\n" );
document.write( "x = 10,000 meters<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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