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28 November, 02:07

Let f (x) = 3x + 7 and g (x) = 4x - 2. Find (f composited with g) (-6).

A.-71 B.-47 C.-72 D.-46

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  1. 28 November, 02:10
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    Hello:

    (fog) (-6) = f (g (-6))

    but : g (-6) = 4 (-6) - 2 = - 26

    (fog) (-6) = f (g (-6)) = f (-26) = 3 (-26) + 7 = - 78+7=-71 (answer : A.-71)
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