document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=503470>Question 503470</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A tree is supported by a wire anchored in the ground 15 feet from its base. the wire is 4 feet longer then the height that it reaches on the tree. find the length f the wire? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #339258 by </B><A HREF=/tutors/aboutme.mpl?userid=oberobic><B>oberobic(2304)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=oberobic><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=339258\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> f = length of the wire<BR>\n" );
document.write( "f = hypotenuse of a right triangle<BR>\n" );
document.write( "a = base of the triangle<BR>\n" );
document.write( "a = 15<BR>\n" );
document.write( "b = height of the triangle<BR>\n" );
document.write( "c = b+4<BR>\n" );
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document.write( "f^2 = a^2 + b^2<BR>\n" );
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document.write( "substitute<BR>\n" );
document.write( "(b+4)^2 = a^2 + b^2<BR>\n" );
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document.write( "Recall a=15<BR>\n" );
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document.write( "b^2 + 8b + 16 = 225 + b^2<BR>\n" );
document.write( "subtract b^2 from both sides<BR>\n" );
document.write( "8b + 16 = 225<BR>\n" );
document.write( "subtract 15 from both sides<BR>\n" );
document.write( "8b = 209<BR>\n" );
document.write( "b = 26 1/8<BR>\n" );
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document.write( "f = 30 1/8<BR>\n" );
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document.write( "Always check your answer:<BR>\n" );
document.write( "f^2 = 58081/64<BR>\n" );
document.write( " = 907.515625<BR>\n" );
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document.write( "a^2 = 225<BR>\n" );
document.write( "b^2 = 682.515625<BR>\n" );
document.write( "a^2 + b^2 = 907.515625<BR>\n" );
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document.write( "Correct.<BR>\n" );
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document.write( "Re-read the question to determine what answer is required.<BR>\n" );
document.write( "What is the length of the wire?<BR>\n" );
document.write( "f = 30 1/8 ft<BR>\n" );
document.write( "f = 30.125 ft<BR>\n" );
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document.write( "Done </SPAN>\n" );
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