document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1128472>Question 1128472</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Use the compound interest formula Upper A= P( 1 + r )^t to find the annual interest&#8203; rate, r, if in 2 years an investment of $2,000 grows to $ 3,380.\r<BR>\n" );
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document.write( "The rate is ? % </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #744927 by </B><A HREF=/tutors/aboutme.mpl?userid=MathLover1><B>MathLover1(20850)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=MathLover1><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=MathLover1><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=744927\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+A=+P%28+1+%2B+r+%29%5Et ALIGN=MIDDLE  ALT=\"+A=+P%28+1+%2B+r+%29%5Et\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t=2 ALIGN=MIDDLE  ALT=\"t=2\"   DISABLED_style= \"max-width:90%; height:auto;\" > years \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=P=2000 ALIGN=MIDDLE  ALT=\"P=2000\"   DISABLED_style= \"max-width:90%; height:auto;\" > grows to \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=A=3380 ALIGN=MIDDLE  ALT=\"A=3380\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r ALIGN=MIDDLE  ALT=\"r\"   DISABLED_style= \"max-width:90%; height:auto;\" >=?\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3380=+2000%28+1+%2B+r+%29%5E2 ALIGN=MIDDLE  ALT=\"+3380=+2000%28+1+%2B+r+%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+3380%2F2000=%28+1+%2B+r+%29%5E2 ALIGN=MIDDLE  ALT=\"+3380%2F2000=%28+1+%2B+r+%29%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+1.69=1+%2B+2r+%2Br%5E2 ALIGN=MIDDLE  ALT=\"+1.69=1+%2B+2r+%2Br%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+r%5E2%2B+2r+%2B1-1.69=0 ALIGN=MIDDLE  ALT=\"+r%5E2%2B+2r+%2B1-1.69=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+r%5E2%2B+2r-0.69=0 ALIGN=MIDDLE  ALT=\"+r%5E2%2B+2r-0.69=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=+100r%5E2%2B+200r-69=0 ALIGN=MIDDLE  ALT=\"+100r%5E2%2B+200r-69=0\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-200+%2B-+sqrt%28+200%5E2-4%2A100%2A%28-69%29+%29%29%2F%282%2A100%29+ ALIGN=MIDDLE  ALT=\"r+=+%28-200+%2B-+sqrt%28+200%5E2-4%2A100%2A%28-69%29+%29%29%2F%282%2A100%29+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-200+%2B-+sqrt%28+40000%2B27600+%29%29%2F200+ ALIGN=MIDDLE  ALT=\"r+=+%28-200+%2B-+sqrt%28+40000%2B27600+%29%29%2F200+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-200+%2B-+sqrt%28+67600+%29%29%2F200+ ALIGN=MIDDLE  ALT=\"r+=+%28-200+%2B-+sqrt%28+67600+%29%29%2F200+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-200+%2B-+260%29%2F200+ ALIGN=MIDDLE  ALT=\"r+=+%28-200+%2B-+260%29%2F200+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-10+%2B-+13%29%2F10+ ALIGN=MIDDLE  ALT=\"r+=+%28-10+%2B-+13%29%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" > ...need only positive solution\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+%28-10+%2B+13%29%2F10+ ALIGN=MIDDLE  ALT=\"r+=+%28-10+%2B+13%29%2F10+\"   DISABLED_style= \"max-width:90%; height:auto;\" > \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r+=+3%2F10 ALIGN=MIDDLE  ALT=\"r+=+3%2F10\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=0.3 ALIGN=MIDDLE  ALT=\"r=0.3\"   DISABLED_style= \"max-width:90%; height:auto;\" > => <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=r=30 ALIGN=MIDDLE  ALT=\"r=30\"   DISABLED_style= \"max-width:90%; height:auto;\" >%\r<BR>\n" );
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document.write( " </SPAN>\n" );
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