document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=321286>Question 321286</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have a tanker that is sitting 450 ft from shore, is leaking oil that is advancing in a circle at 2.2 ft per hour. If it takes 204.55 hrs for the oil to reach the shoreline, how long will it take to contaminate 6 miles of shoreline?  I don't know if I start with the calculating the circumfrence or what? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #230118 by </B><A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><B>ankor@dixie-net.com(22740)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ankor@dixie-net.com><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=ankor@dixie-net.com><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=230118\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have a tanker that is sitting 450 ft from shore, is leaking oil that is<BR>\n" );
document.write( " advancing in a circle at 2.2 ft per hour. <BR>\n" );
document.write( "If it takes 204.55 hrs for the oil to reach the shoreline, how long will it take to contaminate 6 miles of shoreline?<BR>\n" );
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document.write( "As you probably noticed, 204.55 * 2.2 = 450 ft, which would be the radius of<BR>\n" );
document.write( " spill when it just touched the shoreline after 204.55 hrs.<BR>\n" );
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document.write( "Visualize a larger circle that has a 6 mi chord which is 450 ft from the center.<BR>\n" );
document.write( "(The source of the spill)<BR>\n" );
document.write( "The center 450' distance to the 6 mi chord bisects the chord, so we can find the radius by solving a right triangle, with 1 leg 450' and the other leg 3 mi<BR>\n" );
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document.write( "Convert 3 mi to ft: 3*5280 = 15,840 ft<BR>\n" );
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document.write( "radius would be the hypotenuse, so we have<BR>\n" );
document.write( "r = <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=sqrt%28450%5E2+%2B+15840%5E2%29 ALIGN=MIDDLE  ALT=\"sqrt%28450%5E2+%2B+15840%5E2%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "r = 15846.4 ft<BR>\n" );
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document.write( "How long would it take the oil to travel 15,846.4 ft at 2.2 ft/hr?<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=15846.4%2F2.2 ALIGN=MIDDLE  ALT=\"15846.4%2F2.2\"   DISABLED_style= \"max-width:90%; height:auto;\" > = 7,203 hrs (about 300 days)<BR>\n" );
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document.write( "Did this make sense to you? Let me know please (in the comment section).<BR>\n" );
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