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Algebra
Pregunta

A person standing close to the edge on the top of ...

A person standing close to the edge on the top of a \(140\) -foot building throws a baseball vertically upward. The quadratic function given below models the ball's height above the ground, \(s ( t )\) , in feet, \(t\) seconds after it was thrown. Complete parts (a). 

\(s ( t ) = - 16 t ^ { 2 } + 64 t + 140\) 

a. After how many seconds does the ball reach its maximum height? What is the maximum height? The ball reaches its maximum height of \(\square\) feet after \(\square\) seconds. 

Answer

\(204\ \ \ 2\)

Solución
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