The height (in ft) of a projectile launched off a cliff over water is given by:...

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The height (in ft) of a projectile launched off a cliff over water is given by: h (t) = -16 t + 390 t + 115 where t is the time (in seconds) after launch. (a) What is the initial height of the projectile? ft Number (b) When does the projectile hit its maximum height? (round to 2 decimal places) after Number seconds (c) When does the projectile reach 360 ft on its way back down? (round to 2 decimal places) after Number seconds The height (in ft) of a projectile launched off a cliff over water is given by: h (t) = -16 t + 390 t + 115 where t is the time (in seconds) after launch. (a) What is the initial height of the projectile? ft Number (b) When does the projectile hit its maximum height? (round to 2 decimal places) after Number seconds (c) When does the projectile reach 360 ft on its way back down? (round to 2 decimal places) after Number seconds