Find the center and radius of the circle.9x2 - 9x + 9y2 + 9y - 4 = 0
A. 
, r = 
B. 
, r = 
C. 
, r = 
D. 
, r = 
Answer: A
Mathematics
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A. 1
B. 0
C. - 
D. undefined
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of a diagram
A. 
B. 
C. 
D. 
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Draw the angle.- 
A. 
B. 
C. 
D. 
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Match the quadratic function to the correct graph.y = x2 - 7
A. 
B. 
C. 
D. 
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