Question

Please help me thank you very much

Answer 1

Question 1:

Use the Pythagorean theorem to get the magnitude.


`a^2+b^2=c^2`

`a=530`

`b=200`


`c= √(530^2+200^2) \approx 566.5`

To find the angle, use the tangent.


`angle=tan^(-1)(200/530)`

`\approx 21`

Since the vector is between south and west, your answer is the 4th choice.

Question 2:

Add the vectors together.

<-6, 5> + <6, -5>
= <-6+6, -5+5>
= <0,0>

Your answer is the first choice. I hope this helps! :)