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The quadratic function f(x)=-16x^2+90 models the height of a baseball in feet after x seconds. How long is the baseball in the air? A. 2.8125 s B. 5.625 s C. 11.25 s D. 126.5625…

The quadratic function f(x)=-16x^2+90 models the height of a baseball in feet after x seconds. How long is the baseball in the air? A. 2.8125 s B. 5.625 s C. 11.25 s D. 126.5625…
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The quadratic function f(x)=-16x^2+90 models the height of a baseball in feet after x seconds. How long is the baseball in the air?

A. 2.8125 s
B. 5.625 s
C. 11.25 s
D. 126.5625 s

asked
User Carlos Tasada
by
7.8k points

1 Answer

1 vote
B. 5.625 s.............

answered
User Lou Franco
by
8.7k points
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