Find the center and radius of the circle.x2 + (y - 4) 2 = 49
A. Center: (0 , 4); radius: 49
B. Center: (4, 0); radius: 7
C. Center: (-4, 0); radius: 7
D. Center: (0, 4); radius: 7
Answer: D
Mathematics
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, tan ? > 0Find cos 
.
A. 
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