Find the center and radius of the circle.x2 + y2 - 18x - 2y + 33 = 0
A. (9, 1); r = 7
B. (-9, -1); r = 49
C. (-1, -9); r = 49
D. (1, 9); r = 7
Answer: A
Mathematics
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A. 108,500 mg B. 3,500 mg C. 35,000 mg D. 1,085 mg
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Find the greatest common factor of the terms.x7y9, xy8
A. y8 B. x7y9 C. x7y8 D. xy8
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Express 0.0000034 using scientific notation.
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