Question

I need someone to explain to me how to do this, pleaseee!

Answer 1

The vector is in the form <x,y>

and you can use the formulas

x = r*cos(theta)
y = r*sin(theta)


to find the components of the vector. So, ...


x = 5*cos(13)
x = 4.87185

and

y = 5*sin(13)
y = 1.124755


Keep in mind that this vector is in the third quadrant. So both x and y are negative


This means that the vector is <-4.87185, -1.124755> which rounds to <-4.9, -1.1>, so choice C is your answer

Answer 2

Thank you that definitely helped a lot! :)