Given the vectors a and b, a + b is:
D.
B.
C.
A.
Given the vectors r and p. Evaluating r + p gives:
The magnitude of the vector -5i + 12j is:
13.
17.
√119.
7.
The direction of the vector -3i -3j is:
135°.
45°.
225°.
315°.
Given that the vectors 6i + 15j and xi − 5j are parallel, the value of x is:
3.
-2.
-3.
2.
