3 years ago

If f(x) = x and g(x) = 2x + 7, what isf[90X)] when g(x) = 11?

1 answer:

8 0

$\bf \begin{cases} f(x) = x\\ g(x) = 2x+7 \end{cases}~\hspace{7em}g(x)=11\implies \stackrel{g(x)}{11}=2x+7 \\\\\\ 4=2x\implies \cfrac{4}{2}=x\implies \implies \boxed{2=x} \\\\[-0.35em] ~\dotfill\\\\ f[90x]\implies f\left[90\left( \boxed{2} \right)\right]\implies f(180)=\stackrel{x}{180}$

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Answer:

Step-by-step explanation:

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3 years ago

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pogonyaev

Answer:

Step-by-step explanation:

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