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13 July, 15:53

8) g (n) = 3n + 2

Perform the indicated operation

f (n) = 2n

2

+ 5

Find g (f (2))

+1
Answers (1)
  1. 13 July, 16:31
    0
    The answer is: 41

    Step 1: Calculate f (2).

    Step 2: Calculate g (f (2)).

    Step 1.

    f (n) = 2n² + 5

    If n = 2, then f (n) = f (2) = ?

    f (2) = 2 * 2² + 5 = 2 * 4 + 5 = 8 + 5 = 13

    Step 2.

    g (n) = 3n + 2

    If n = f (n), then g (n) = g (f (n)).

    If f (2) = 13, then g (f (2)) = g (13) = ?

    g (13) = 3 * 13 + 2 = 39 + 2 = 41
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