12) A bus makes three displacements in the following order:
1) 38 mi, 48° east of north
41.42² +67.44²/
2) 79 mi, 46 west of north; and
3) 55 mi, south-east
a. Find the X and Y components of displacement D₁.
b. Find the X and Y components of displacement D2.
Find the X and Y components of displacement D3.
d. Find the magnitude and direction of the resultant vector.