State the domain of the rational function.f(x) = 
A. (-?, - 1) ? (- 1, 1) ? (1, ?)
B. (-?, 4) ? (4, ?)
C. (-?, -1) ? (-1, ?)
D. (-?, ?)
Answer: A
Mathematics
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? 
A. 900
B. 5
C. 6
D. 30
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Solve.x2 + y2 = 1005x2 + 2y2 = 225
A. 
, 
, 
, 
B. 
, 
C. 
, 
, 
, 
D. 
, 
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