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2 December, 04:45

If f (x) = - 2x^3, g (x) = 3x-5, and h (x) = x-1, what is f (g (h (3))) ?

A) - 129

B) - 54

C) - 53

D) - 2

+3
Answers (1)
  1. 2 December, 05:14
    0
    F (g (h (3)))

    find h (3)

    h (3) = 3-1=2

    now

    f (g (h (3)) = f (g (2))

    find g (2)

    g (2) = 3 (2) - 5=6-5=1

    now

    f (g (h (3))) = f (g (2)) = f (1)

    find f (1)

    f (1) = - 2 (1) ^3

    f (1) = - 2 (1)

    f (1) = - 2

    answer is D
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