Bearings and vectors in plane

The vector represented in the preceding example is known as a velocity vector. The bearing of a vector v is the angle measured clockwise from due north to v. In the example, the bearing of the plane is 270° and the bearing of the wind is 225°.

none of the above.

for one of the equations to be used in the process, there has to be a term in the equation since squared is .

since there is only a term in the first equation, we cannot derive a from completing the square.

solving with completing the square