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A hovercraft takes off from a platform.
Its height (in meters), 3 seconds after takeoff, is modeled by
h(x) = -(x - 11)(x + 3)
How many seconds after takeoff will the hovercraft land on the ground​

Respuesta :

Answer:

14

Step-by-step explanation:

when it lands on the ground, h(x) = 0

x = -3, x = 11

since it is 3 second after takeoff,

x = -3 + 3 = 0

x= 11+3 = 14