document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1140216>Question 1140216</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If you throw a ball straight up from a rooftop 160 feet high with an initial speed of 48 feet per​ second, then the formula h=-16t^2+48t+160 describes the​ ball's height h feet above the​ ground, t seconds after you released it. The ball misses the rooftop and eventually strikes the ground.<BR>\n" );
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document.write( "A) What is the height of the ball one second after you release​ it? <BR>\n" );
document.write( "Solution​:Find <BR>\n" );
document.write( "the value of h in the formula h=−16t^2+48t+160 when t​ = 1.\r<BR>\n" );
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document.write( "h​ =_____feet<BR>\n" );
document.write( "the answer i got was 196\r<BR>\n" );
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document.write( "​b) How long will it take the ball th hit the​ ground? <BR>\n" );
document.write( "Solution​:Find the value of t in the formula h=−16t^2+48t+160 <BR>\n" );
document.write( "when h​ = 0.<BR>\n" );
document.write( "It will take _____ seconds for the ball th hit the ground.<BR>\n" );
document.write( "the answer i got was 5  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #760702 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=760702\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> \r<BR>\n" );
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document.write( "A) What is the height of the ball one second after you release​ it? \r<BR>\n" );
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document.write( "Find \r<BR>\n" );
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document.write( "the value of h in the formula \r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=-16t%5E2%2B48t%2B160 ALIGN=MIDDLE  ALT=\"h=-16t%5E2%2B48t%2B160\"   DISABLED_style= \"max-width:90%; height:auto;\" > when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=t%E2%80%8B+=+1 ALIGN=MIDDLE  ALT=\"t%E2%80%8B+=+1\"   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=h=-16%2A1%5E2%2B48%2A1%2B160 ALIGN=MIDDLE  ALT=\"h=-16%2A1%5E2%2B48%2A1%2B160\"   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=h%E2%80%8B+=192 ALIGN=MIDDLE  ALT=\"h%E2%80%8B+=192\"   DISABLED_style= \"max-width:90%; height:auto;\" > feet is correct answer\r<BR>\n" );
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document.write( "the answer i got was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=196 ALIGN=MIDDLE  ALT=\"196\"   DISABLED_style= \"max-width:90%; height:auto;\" >=>incorrect<BR>\n" );
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document.write( "​b) How long will it take the ball to hit the​ ground? \r<BR>\n" );
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document.write( "Solution​:<BR>\n" );
document.write( "Find the value of t in the formula <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h=-16t%5E2%2B48t%2B160+ ALIGN=MIDDLE  ALT=\"h=-16t%5E2%2B48t%2B160+\"   DISABLED_style= \"max-width:90%; height:auto;\" > when <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=h%E2%80%8B+=+0 ALIGN=MIDDLE  ALT=\"h%E2%80%8B+=+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=0=-16t%5E2%2B48t%2B160+ ALIGN=MIDDLE  ALT=\"0=-16t%5E2%2B48t%2B160+\"   DISABLED_style= \"max-width:90%; height:auto;\" >.............factor completely\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=16%28t%5E2-3t-10%29=0+ ALIGN=MIDDLE  ALT=\"16%28t%5E2-3t-10%29=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=16%28t%5E2%2B2t-5t-10%29=0+ ALIGN=MIDDLE  ALT=\"16%28t%5E2%2B2t-5t-10%29=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=16%28%28t%5E2%2B2t%29-%285t%2B10%29%29=0+ ALIGN=MIDDLE  ALT=\"16%28%28t%5E2%2B2t%29-%285t%2B10%29%29=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=16%28t%28t%2B2%29-5%28t%2B2%29%29=0+ ALIGN=MIDDLE  ALT=\"16%28t%28t%2B2%29-5%28t%2B2%29%29=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=16+%28t+-+5%29+%28t+%2B+2%29+=+0 ALIGN=MIDDLE  ALT=\"16+%28t+-+5%29+%28t+%2B+2%29+=+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=t=5 ALIGN=MIDDLE  ALT=\"t=5\"   DISABLED_style= \"max-width:90%; height:auto;\" > or <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;\" >-> disregard negative solution for time\r<BR>\n" );
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document.write( "It will take __<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5 ALIGN=MIDDLE  ALT=\"5\"   DISABLED_style= \"max-width:90%; height:auto;\" >___ seconds for the ball th hit the ground.\r<BR>\n" );
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document.write( "the answer i got was <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=5 ALIGN=MIDDLE  ALT=\"5\"   DISABLED_style= \"max-width:90%; height:auto;\" >=> correct\r<BR>\n" );
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