document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=896016>Question 896016</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I need help determining the width of a dish (satellite) if the depth is 2 feet and the focus is 5 inches from the vertex. Assuming that the vertex is at (0,0).  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #543188 by </B><A HREF=/tutors/aboutme.mpl?userid=lwsshak3><B>lwsshak3(11628)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=lwsshak3><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=543188\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> need help determining the width of a dish (satellite) if the depth is 2 feet and the focus is 5 inches from the vertex. Assuming that the vertex is at (0,0).<BR>\n" );
document.write( "***<BR>\n" );
document.write( "Draw a parabola that opens up with vertex at the origin.<BR>\n" );
document.write( "Its basic equation: x^2=4py<BR>\n" );
document.write( "(x,2)=(x,y)coordinates of top right edge of dish<BR>\n" );
document.write( "p=5/12 (distance from vertex to focus)<BR>\n" );
document.write( "4p=5/3<BR>\n" );
document.write( "using coordinates of top right edge of dish<BR>\n" );
document.write( "equation: x^2=(5/3)2<BR>\n" );
document.write( "x=&#8730;(10/3)<BR>\n" );
document.write( "2x&#8776;3.65<BR>\n" );
document.write( "width of dish&#8776;3.65 ft </SPAN>\n" );
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