Answer:
[tex]C\approx 5748.2feet[/tex]
Step-by-step explanation:
From the question we are told that
Angle of elevation [tex]\thata=8 \textdegree[/tex]
Height of plane [tex]H=850feet[/tex]
Generally the equation for the Distance flown is given by
  [tex]C=\frac{H}{sin \theta}[/tex]
  [tex]C=\frac{800}{sin8}[/tex]
  [tex]C=5748.237227[/tex]
  [tex]C\approx 5748.2feet[/tex]
Therefore Distance flown is
  [tex]C\approx 5748.2feet[/tex]