document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159700>Question 1159700</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A  basketball is thrown toward a hoop, which is 3m above the ground. The height (y, in metres) if the basketball above the ground after t seconds is given by the equation y= -5t^2 + 10t +2\r<BR>\n" );
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document.write( "A) the shot misses and the ball hits the floor. What was the hang time of the ball (that is, after how many seconds does the ball hit the ground)?\r<BR>\n" );
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document.write( "b) The player makes the she shot. How much time has passed between the throwing and the scoring\r<BR>\n" );
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document.write( "Be careful when choosing which number is the solution. The ball first reaches a height of 3m as it is traveling upwards. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #782783 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=782783\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> when it hits the ground -5t^2+10t+2=0<BR>\n" );
document.write( "or 5t^2-10t-2=0<BR>\n" );
document.write( "t=(1/10)(10+/-sqrt(100+40))<BR>\n" );
document.write( "t=(1/10) (10+/-11.83)<BR>\n" );
document.write( "=2.183 seconds\r<BR>\n" );
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document.write( "The longer time is the solution for the second part, which is when -5t^2+10t+2=3<BR>\n" );
document.write( "or -5t^2+10t-1=0<BR>\n" );
document.write( "or 5t^2-10t+1=0<BR>\n" );
document.write( "or t=(1/10)(10+/- sqrt(100-20))<BR>\n" );
document.write( "the solutions are 0.106 seconds (going up) and 1.894 sec (going through rim)\r<BR>\n" );
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