Find the domain of the composite function f?g.f(x) = 
,g(x) = x + 2
A. (-?, ?)
B. (-?, -7) or (-7, -2) or (-2, ?)
C. (-?, -7) or (-7, ?)
D. (-?, -9) or (-9, ?)
Answer: D
Mathematics
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A. 
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C. 
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A. {-1, 4}
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C. 
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