document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=438784>Question 438784</A>: <I><SPAN STYLE=\"word-break: break-all;\"> When a ball is thrown upward at a speed of 19m/s, its height s above the ground (in meters) after t seconds is given by the formula<BR>\n" );
document.write( "s=19t-24.01t<BR>\n" );
document.write( "find the height of the ball after 3 seconds\r<BR>\n" );
document.write( "\n" );
document.write( "I just can't figure out how to solve<BR>\n" );
document.write( "Kim </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #303352 by </B><A HREF=/tutors/aboutme.mpl?userid=Alan3354><B>Alan3354(69443)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Alan3354><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=Alan3354><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=303352\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> When a ball is thrown upward at a speed of 19m/s, its height s above the ground (in meters) after t seconds is given by the formula<BR>\n" );
document.write( "s=19t-24.01t<BR>\n" );
document.write( "find the height of the ball after 3 seconds<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "Sub 3 for t<BR>\n" );
document.write( "s = 19*3 - 24.01*3 = -15.03 meters<BR>\n" );
document.write( "Doesn't seem right, does it?<BR>\n" );
document.write( "-----------------<BR>\n" );
document.write( "Acutally, the equation is<BR>\n" );
document.write( "s = 19t - 4.9t^2<BR>\n" );
document.write( "at t=3<BR>\n" );
document.write( "s = 19*3 - 4.9*9<BR>\n" );
document.write( "s = 12.9 meters<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );