# Question #4dd1c

##### 2 Answers

#### Answer:

c

#### Explanation:

Draw 2 triangles from the vectors

vector a is 12m @ 40 degrees

vector b is 9m @ 20 degrees

Any line that's not straight can be a hypotnuse.

Based on the graph, you need cosine to find x since cos=hyp/adj and adj is moving in the x axis.

Vector a:

Vector b:

a goes in the positive direction and b goes in the negative direction, so

As given in the question

So the component of