1.	Find the sum of and .
		A.		B.
		C.		D.
		Hint
	2.	The sum of two or more vectors is called _____.
		A.	the zero vector	B.	the resultant
		C.	the magnitude	D.	a scalar
		Hint
	3.	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 64 miles; about 77 miles	B.	about 50 miles; about 87 miles
		C.	about 87 miles; about 50 miles	D.	about 77 miles; about 84 miles
		Hint
	4.	If a vector has its initial point at the origin, it ________.
		A.	has no direction	B.	is in standard position
		C.	has a magnitude of zero	D.	is a scalar
		Hint
	5.	|| = 14, || = 9, and . Find ||.
		A.	23	B.	5
		C.	17	D.	126
		Hint