A batter hits a baseball. The ball's height (in feet) \( h ( t ) \) after t seconds is given by \( h ( t ) = - 16 t ^ { 2 } + 140 t + 8 \) . a. What is the ball's height when the batter makes contact with it? b. What is the maximum height of the ball? When does it reach that height? c. Graph \( h \) by hand.
Pregunta
Answer
a) 8 ft
b) 314.25 ft at 4.375 s
c)
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Q:
The total revenue from the sale of a popular book is approximated by the rational function \( R ( x ) = \frac { 1700 x ^ { 2 } } { x ^ { 2 } + 4 } \) , where \( x \) is the number of years since publication and \( R ( x ) \)
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