document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=732254>Question 732254</A>: <I><SPAN STYLE=\"word-break: break-all;\"> a seismograph located 10 miles due north of a recording station detects a n earthquake with epicenter 15 miles away.\r<BR>\n" );
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document.write( "Write an equation that could be used to describe possible locations of the epicenter. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #447749 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=447749\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> a seismograph located 10 miles due north of a recording station detects a n earthquake with epicenter 15 miles away.\r<BR>\n" );
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document.write( "Write an equation that could be used to describe possible locations of the epicenter.<BR>\n" );
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document.write( "Using the location of the seismograph as the origin (0,0,0),<BR>\n" );
document.write( "the earthquake's location is on a sphere <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5E2+%2B+y%5E2+%2B+z%5E2+=+15%5E2 ALIGN=MIDDLE  ALT=\"x%5E2+%2B+y%5E2+%2B+z%5E2+=+15%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >, <BR>\n" );
document.write( "where z is the depth and is negative.<BR>\n" );
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