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7 September, 20:08

If f (x) = x2+5, g (x) = 9x-1, and h (x) = - 2x find each value.

Find h [g (x) ]when x=3

A. 56

B. 52

C. 42

D. 46

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Answers (1)
  1. 7 September, 20:29
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    H[g (x) ] when x=3:

    x=3→h[g (3) ]

    x=3→g (3) = 9 (3) - 1

    g (3) = 27-1

    g (3) = 26

    h[g (3) ]=h (26) = - 2 (26)

    h (26) = - 52

    h[g (x) ] when x=3 is - 52

    Answer: Option B. - 52
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