Graph the system of linear equations -1/2y= 1/2x + 5 and y = 2x + 2.
The solution to the system is (

  (x, y) = (-4, -6)

Step-by-step explanation:

See the attachment for a graph. The solution is the point of intersection of the two lines.

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.