Question

Find the magnitude and direction of the vector. Round the length to the nearest tenth and the degree to the nearest unit. Diagram is not drawn to scale.

Answer 1

you can use the pythagorean theorem to find the magnitude.
with the 2 numbers given, use arctan(4/6)
This will give you the reference angle in your calculator.
degrees north of east can be used to describe the angle your calculator outputs

Answer 2

isnt the equater. that is o degree.

Answer 3

yes, but because the axis is represented with North and East, i figure they want you to use those in the final answer, although the positive x-axis is already 0 degrees