Find the center-radius form of the equation of the circle.center (7, 0), radius 

A. (x - 7)2 + y2 = 
B. x2 + (y - 7)2 = 225
C. (x + 7)2 + y2 = 15
D. (x - 7)2 + y2 = 15


Answer: D

Mathematics

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Use the given information to find the exact value of the trigonometric function.cos ? = - , ? lies in quadrant IIIFind cos .

A. - 
B.
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A.
B.  
C.  
D.  

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