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Let

\[f(x) = \begin{cases} 3x + 5 &\text{if }x<-3, \\ 7+4x&\text{if }x\ge -3. \end{cases}\]

Find f(5).

 Feb 23, 2021
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$5\ge -3\implies  f(5)=7+4*5=\boxed{27}$

 Feb 23, 2021

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