document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=649460>Question 649460</A>: <I><SPAN STYLE=\"word-break: break-all;\"> PLEASE OPEN THIS LINKS. SO THEY ARE LINK PLS OPEN THEM. Please answer these questions: THEY ARE LINKS SO PLEASE OPEN THEM. <BR>\n" );
document.write( "* http://static.tumblr.com/o5ekeuz/2OOma6taj/abc.png<BR>\n" );
document.write( "and * http://static.tumblr.com/o5ekeuz/hBhma6td6/abcc.png<BR>\n" );
document.write( "PLEASE THANKS I NEED IT NOWI NEED IT NOW ASAP PLS PLS PLS I BEG YOU. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #406967 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=406967\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> * http://static.tumblr.com/o5ekeuz/2OOma6taj/abc.png<BR>\n" );
document.write( "This has 2 sketches, says to find ABC.<BR>\n" );
document.write( "The 1st one has no B in it.<BR>\n" );
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document.write( "For the 2nd one, all you can say is ABC = arctan((x^2 + 81)/12x)<BR>\n" );
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document.write( "If the 12x and the x^2 + 81 are the angles, and not the sides, then<BR>\n" );
document.write( "x^2 + 12x + 81 = 90<BR>\n" );
document.write( "x^2 + 12x - 9 = 0<BR>\n" );
document.write( "<TABLE  BORDER=1>\n" );
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document.write( " <TR><TD  ALIGN=MIDDLE>Solved by <A  rel=nofollow HREF=http://wiki.algebra.com/index.php/Tutoring_-_pluggable_solvers>pluggable</A> solver: <A  rel=nofollow HREF=solve_quadratic_equation.solver>SOLVE quadratic equation (work shown, graph etc)</A></TD></TR>\n" );
document.write( "<TR><TD  ALIGN=LEFT>Quadratic equation <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=ax%5E2%2Bbx%2Bc=0 ALIGN=MIDDLE  ALT=\"ax%5E2%2Bbx%2Bc=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > (in our case <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1x%5E2%2B12x%2B-9+=+0 ALIGN=MIDDLE  ALT=\"1x%5E2%2B12x%2B-9+=+0\"   DISABLED_style= \"max-width:90%; height:auto;\" >) has the following solutons:<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca ALIGN=MIDDLE  ALT=\"x%5B12%5D+=+%28b%2B-sqrt%28+b%5E2-4ac+%29%29%2F2%5Ca\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  <BR>\n" );
document.write( "  For these solutions to exist, the <U>discriminant</U> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2-4ac ALIGN=MIDDLE  ALT=\"b%5E2-4ac\"   DISABLED_style= \"max-width:90%; height:auto;\" > should not be a negative number.<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  First, we need to compute the discriminant <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2-4ac ALIGN=MIDDLE  ALT=\"b%5E2-4ac\"   DISABLED_style= \"max-width:90%; height:auto;\" >: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=b%5E2-4ac=%2812%29%5E2-4%2A1%2A-9=180 ALIGN=MIDDLE  ALT=\"b%5E2-4ac=%2812%29%5E2-4%2A1%2A-9=180\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "  <BR>\n" );
document.write( "  Discriminant d=180 is greater than zero. That means that there are two solutions: <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+x%5B12%5D+=+%28-12%2B-sqrt%28+180+%29%29%2F2%5Ca ALIGN=MIDDLE  ALT=\"+x%5B12%5D+=+%28-12%2B-sqrt%28+180+%29%29%2F2%5Ca\"   DISABLED_style= \"max-width:90%; height:auto;\" >.<BR>\n" );
document.write( "  <BR>\n" );
document.write( "    <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B1%5D+=+%28-%2812%29%2Bsqrt%28+180+%29%29%2F2%5C1+=+0.708203932499369 ALIGN=MIDDLE  ALT=\"x%5B1%5D+=+%28-%2812%29%2Bsqrt%28+180+%29%29%2F2%5C1+=+0.708203932499369\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "    <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=x%5B2%5D+=+%28-%2812%29-sqrt%28+180+%29%29%2F2%5C1+=+-12.7082039324994 ALIGN=MIDDLE  ALT=\"x%5B2%5D+=+%28-%2812%29-sqrt%28+180+%29%29%2F2%5C1+=+-12.7082039324994\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "    <BR>\n" );
document.write( "    Quadratic expression <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1x%5E2%2B12x%2B-9 ALIGN=MIDDLE  ALT=\"1x%5E2%2B12x%2B-9\"   DISABLED_style= \"max-width:90%; height:auto;\" > can be factored:<BR>\n" );
document.write( "  <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=1x%5E2%2B12x%2B-9+=+%28x-0.708203932499369%29%2A%28x--12.7082039324994%29 ALIGN=MIDDLE  ALT=\"1x%5E2%2B12x%2B-9+=+%28x-0.708203932499369%29%2A%28x--12.7082039324994%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "  Again, the answer is: 0.708203932499369, -12.7082039324994.\n" );
document.write( "Here's your graph:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+1%2Ax%5E2%2B12%2Ax%2B-9+%29 ALIGN=MIDDLE  ALT=\"graph%28+500%2C+500%2C+-10%2C+10%2C+-20%2C+20%2C+1%2Ax%5E2%2B12%2Ax%2B-9+%29\"   DISABLED_style= \"max-width:90%; height:auto;\" ></TD></TR>\n" );
document.write( "</TABLE><BR>\n" );
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document.write( "------------------<BR>\n" );
document.write( "Ignore the negative numbers<BR>\n" );
document.write( "12x =~ 8.4984 degs<BR>\n" );
document.write( "x^2 + 81 =~ 81.5016 degs\r<BR>\n" );
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document.write( "and * http://static.tumblr.com/o5ekeuz/hBhma6td6/abcc.png<BR>\n" );
document.write( "In that one, if the 3x and the 10x/3 are the angles, then<BR>\n" );
document.write( "3x + 10x/3 = 90 degs<BR>\n" );
document.write( "9x + 10x = 270<BR>\n" );
document.write( "x = 270/19 degs<BR>\n" );
document.write( "--------------<BR>\n" );
document.write( "3x = 810/19 degs =~ 42.63 degs<BR>\n" );
document.write( "10x/3 =~ 47.37 degs </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );