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.	1
		C.	any negative number	D.	0
		Hint
	3.	The sum of two or more vectors is called _____.
		A.	the resultant	B.	a scalar
		C.	the zero vector	D.	the magnitude
		Hint
	4.	If both the initial and terminal points of a vector are at the origin, the vector is __________.
		A.	the zero vector	B.	negative
		C.	linearly independent	D.	positive
		Hint
	5.	|| = 14, || = 9, and . Find ||.
		A.	17	B.	5
		C.	126	D.	23
		Hint