Question

when the probe reaches the ocean for approximately how far would the pro be from the team ships on the surface when measured horizontally round the nearest meter

Answer 1

Given the angle of depression = 76.4

And the length from the probe to the ship = 3,900 meters

The horizontal distance between the probe and the ship = x

So, x represents the adjacent side to the angle 76.4

The hypotenuse = 3900 m

So,

`\begin{gathered} \cos 76.4=(adjacent)/(hypotenuse) \\ \\ \cos 76.4=(x)/(3900) \\ \\ x=3900\cdot\cos \text{76}.4=917.054 \end{gathered}`

rounding to the nearest meter

so, the answer is option 1). 917 meters