Question

A hovercraft takes off from a platform.

Answer 1

Answer:

  11 seconds

Step-by-step explanation:

The value of h(x) is zero when either of the factors is zero:

  x -11 = 0   ⇒   x = 11

  x +3 = 0   ⇒   x = -3

The solution x = -3 is not in the practical domain of the model, so the only reasonable solution is x = 11.

The hovercraft will land 11 seconds after takeoff.