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16 November, 19:12

The number of subscribers to a streaming video service doubles each week. The function f (x) = 2^x represents the number of subscribers in a week x. when are there 64 subscribers?

A. week 6

B. week 7

C. week 32

D. week4

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Answers (1)
  1. 16 November, 19:34
    0
    For this case we have the following function:

    f (x) = 2 ^ x

    For f (x) = 64 we have:

    64 = 2 ^ x

    Clearing the value of x we have:

    log2 (2 ^ x) = log2 (64)

    x = log2 (64)

    x = 6

    Answer:

    there are 64 subscribers in:

    A. week 6
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