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16-09-2020
Mathematics

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If f(x) and f^-1(X) are inverse functions of each other and f(x)=2x+5, what I f^-1(8)

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madelyntarara madelyntarara

16-09-2020

Answer: 3/5

Step-by-step explanation:

First, you need to find the inverse of f(x)=2x+5 .

[tex]f-1(x)= \frac{x}{2} -\frac{5}{2}[/tex]

Then, you'd plug in 8 into that equation, which I got [tex]\frac{3}{5\\}[/tex]

Hope this helps :)

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