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24 December, 20:02

If f (x) = -8x+8 and g (x) = sqrt x-9 what is (f•g) (18)

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  1. 24 December, 20:11
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    -16

    Step-by-step explanation:

    f (x) = -8x+8 and g (x) = sqrt x-9

    (f•g) (18) = f (g (18))

    g (18) = sqrt (18-9) = sqrt9=3

    f (3) = -24+8=-16
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