Solve for the value of X. Round to the nearest whole number.

x = 30º

Step-by-step explanation:

This answer requires trigonometry, specifically, the cosine function. This is because we are given the length of the side adjacent to x and the length of the hypotenuse.

If you recall:

Therefore,

Now, we must use the inverse cosine function on a calculator to figure out the value of x.

Now, we must round it to the nearest whole number, so x = 30º.

6, 10

9, -13

12, -21

18, -23

step-by-step explanation:

you just add 6 to the x-coordinate and subtract 10 from the y-coordinate.