youngmuny youngmuny

10-10-2019
Mathematics

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4. f(x) = x² – 5 (if x 20) and g(x) = (x + 5

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Аноним Аноним

10-10-2019

Evaluating functions means to substitute the values at every occurrence of x.

So, we have

[tex]f(x)=x^2-5 \implies f(20)=20^2-5 = 400-5=395[/tex]

You didn't specify where we should evaluate g(x).

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