document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=331551>Question 331551</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Suppose we have a pendulum that is “y” feet long. Our pendulum makes one complete swing in “t” seconds. Assume “y” and “t” are related by the formula y = .9 t2. If the pendulum is less than 4 feet long, what is the range of values for “t”?\r<BR>\n" );
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document.write( "I really need help with this one I don't even know where to start. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #237634 by </B><A HREF=/tutors/aboutme.mpl?userid=JBarnum><B>JBarnum(2146)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=JBarnum><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=JBarnum><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=237634\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> from the looks of it u have an equation<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y=.9t%5E2 ALIGN=MIDDLE  ALT=\"y=.9t%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "and you have what y =<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=y%3C4 ALIGN=MIDDLE  ALT=\"y%3C4\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "so:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4%3E.9t%5E2 ALIGN=MIDDLE  ALT=\"4%3E.9t%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" >divide by .9<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=4.4444%3Et%5E2 ALIGN=MIDDLE  ALT=\"4.4444%3Et%5E2\"   DISABLED_style= \"max-width:90%; height:auto;\" ><BR>\n" );
document.write( "t=2.1082 or -2.1082 since we cant go back in time negative wouldnt be an answer<BR>\n" );
document.write( "so the time takes less than 2.1082 seconds<BR>\n" );
document.write( "range from [0 ,  2.1082]<BR>\n" );
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