1.	Find the sum of and .
		A.		B.
		C.		D.
		Hint
	2.	The magnitude of the zero vector is _____.
		A.	any positive number except 1	B.	any negative number
		C.	1	D.	0
		Hint
	3.	The sum of two or more vectors is called _____.
		A.	the resultant	B.	the magnitude
		C.	the zero vector	D.	a scalar
		Hint
	4.	A ship leaving port sails for 100 miles in a direction 40° north of due east. Find the magnitude of the vertical and horizontal components.
		A.	about 77 miles; about 84 miles	B.	about 64 miles; about 77 miles
		C.	about 87 miles; about 50 miles	D.	about 50 miles; about 87 miles
		Hint
	5.	If a vector has its initial point at the origin, it ________.
		A.	has a magnitude of zero	B.	has no direction
		C.	is in standard position	D.	is a scalar
		Hint