if Ariana decides to become a CPA (Certified Public Account), she will earn $78,850 each year. How much more will Ariana earn each year as a CPA than as an account every year?​

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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.

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