document.write( "Question 1154333: A toy rocket is shot vertically into the air from a launching pad 9 feet above the ground with an initial velocity of 80 feet per second. The height h, in feet, of the rocket above the ground at t seconds after launch is given by the function h(t)=-16t^2+80t+9. How long will it take the rocket to reach its maximum height? \n" ); document.write( "

Algebra.Com's Answer #776733 by ikleyn(52794) $\"\"$ $\"About$

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document.write( "The correct answer for the maximum height is 109 feet     ( not meters (!) )\r\n" );
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