A dog searching for a bone walks 3.50m south, then 8.20m at an angle of 30.0 degrees north of east, and finally 15.0m west.

A dog searching for a bone walks 3.50m south, then 8.20m at an angle of 30.0 degrees north of east, and finally 15.0m west. Use graphical techniques to find the dog's resultant displacement vector (include known and unknown and drawing of the example and break down of the equations if any used.)