Use the Given Information to Find the Cosines of Angles $A B C$

question 17

Multiple Choice

Use the given information to find the cosines of angles in $A B C$ . $a = 13$ cm, $b = 12$ cm, $c = 5$ cm

• A) \(\cos A = 0.689\) , \(\cos B = 0.749\) , \(\cos C = 0.082\)
• B) \(\cos A = 0.859 , \cos B = 0.601 , \cos C = 0.993\)
• C) \(\cos A = 0.929\) , \(\cos B = 0.779\) , \(\cos C = 0.082\)
• D) \(\cos A = 0\) , \(\cos B = 0.385\) , \(\cos C = 0.923\)
• E) \(\cos A = 0.005\) , \(\cos B = 0.539\) , \(\cos C = 0.854\)

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Definitions:

Demand Curve

A visual depiction highlighting how the cost of a good influences the quantity that buyers seek.

Price

The amount of money required to purchase a good or service; it acts as a signal between sellers and buyers.

Consumer Surplus

The difference between what consumers are willing to pay for a good or service and what they actually pay, representing the benefit to consumers.