document.write( "Question 1154647: A person standing close to the edge on top of a 96-foot building throws a ball vertically upward. The quadratic function h(t)=−16t^2+80t+96
\n" ); document.write( "models the ball's height about the ground, h(t), in feet, t seconds after it was thrown.
\n" ); document.write( " What is the maximum height of the ball?
\n" ); document.write( "How many seconds does it take until the ball hits the ground?
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Algebra.Com's Answer #777134 by MathTherapy(10552)\"\" \"About 
You can put this solution on YOUR website!
A person standing close to the edge on top of a 96-foot building throws a ball vertically upward. The quadratic function h(t)=−16t^2+80t+96
\n" ); document.write( "models the ball's height about the ground, h(t), in feet, t seconds after it was thrown.
\n" ); document.write( " What is the maximum height of the ball?
\n" ); document.write( "How many seconds does it take until the ball hits the ground?
\n" ); document.write( "
You don't have to do what the other person did. It's TOTALLY UNNECESSARY!
\n" ); document.write( "\"matrix%281%2C3%2C+h%28t%29%2C+%22=%22%2C+-+16t%5E2+%2B+80t+%2B+96%29\"
\n" ); document.write( "Maximum height occurs at:
\n" ); document.write( "With t = 2.5, maximum height of ball, or:
\n" ); document.write( "To find the time it takes for the ball to hit the ground, we set h(t) = 0. We then get:
\n" ); document.write( "0 = (t - 6)(t + 1)
\n" ); document.write( "0 = t - 6 OR 0 = t + 1
\n" ); document.write( "Time it takes to hit the ground, or: \"highlight_green%28matrix%281%2C4%2C+t%2C+%22=%22%2C+6%2C+seconds%29%29\" OR t = - 1 (ignore)
\n" ); document.write( "In other words, you don't have to COMPLETE the SQUARE, and you certainly DON'T have to use the quadratic equation formula! Unless you want to!! \n" ); document.write( "
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