document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=973693>Question 973693</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The graph of y = n ( 1&#8722;x^2 ) has an area equal to 51, find the value of n. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #595833 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=595833\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> first find the zeros for 1 - x^2<BR>\n" );
document.write( "(1+x)(1-x) = 0<BR>\n" );
document.write( "zeros are -1, 1<BR>\n" );
document.write( "integrate 1 - x^2<BR>\n" );
document.write( "integral = x - x^3/3<BR>\n" );
document.write( "evaluate the integral for x = -1 and 1<BR>\n" );
document.write( "(1 - 1/3) - (-1 + 1/3) = 2/3 + 2/3 = 4/3<BR>\n" );
document.write( "we are given<BR>\n" );
document.write( "51 = n * 4/3<BR>\n" );
document.write( "4n = 153<BR>\n" );
document.write( "n = 38.25<BR>\n" );
document.write( " </SPAN>\n" );
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