ACT Math Practice Question
An object is launched vertically at 30 meters per second from a 55-meter-tall platform. The height, $h(t)$ meters, of the object $t$ seconds after launch is modeled by $h(t) = -4.9t^2 + 30t + 55$. What will be the height, in meters, of the object 3 seconds after launch?
- A.44.1
- B.100.9
- C.145
- D.189.1
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