Question:
NASA launches a rocket at t= 0 seconds. Its height, in
Last updated: 7/21/2022
![NASA launches a rocket at t= 0 seconds. Its height, in](https://media.kunduz.com/media/sug-question/raw/52960196-1658432875.4377077.jpeg?h=512)
NASA launches a rocket at t= 0 seconds. Its height, in meters above sea-level, as an equation of time is given by h=- 4.9ť² + 139t + 269. How many seconds does it take for the rocket to reach its maximum height?