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13 January, 19:34

Let f (w) = 2w^3 - 5. Let z = 2. What is f (z) ?

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  1. 13 January, 19:38
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    11

    Step-by-step explanation:

    z = 2; therefore, f (z) = f (2).

    The letter/number inside of the bracket replaces the orginal letter, in this case w.

    f (w) = 2w^3 - 5

    f (2) = 2 (2) ^3 - 5

    f (2) = 2 (8) - 5

    f (2) = 16 - 5

    f (2) = 11

    As a result, f (z) = 11
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