Use an associative law to find an equivalent expression.r + (8 + s)

A. (r + 8) + s
B. r + (s + 8)
C. (8 + s) + r
D. r(8 + s)


Answer: A

Mathematics

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Find the domain of the composite function f?g.f(x) = , g(x) = x + 7

A. (-?, -9) ? (-9, -7) ? (-7, ?) B. (-?, ?) C. (-?, -9) ? (-9, ?) D. (-?, -16) ? (-16, ?)

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Mathematics