# 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.

Mathematics
stephaniemathurin

##
Question

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

A. 2.8125 s

B. 5.625 s

C. 11.25 s

D. 126.5625 s