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13 May, 16:49

The function f (x) = 3x - 2 represents the altitude of a hot air balloon, where x is the time in minutes. The function g (x) = x2 - 1 represents the time in minutes, where x is the height in thousands of feet of the hot air balloon. What is the value of f[g (5) ]?

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  1. 13 May, 17:07
    0
    70

    Step-by-step explanation:

    If g (x) = x^2 - 1, then

    f[g (5) ] = 3 * (5^2-1) - 2 = 72-2 = 70
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