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#34724

applications

quadratic equations

functions

hard

180 sec

A rocket is launched from a platform 12 meters high. Its height, in meters, is modeled by a quadratic function of time, in seconds, after launch. It reaches a maximum height of 112 meters after 5 seconds. How many seconds after launch will the rocket hit the ground? Round your answer to the nearest tenth of a second.

• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-).
• Fractions must be in lowest terms.
• Mixed numbers must be converted to improper fractions.