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  • 04-05-2019
  • Mathematics
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HARDEST MATH QUESTION OF ALL TIME

HARDEST MATH QUESTION OF ALL TIME class=

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calculista
calculista calculista
  • 14-05-2019

Answer:

Option A. [tex]\frac{29}{4}[/tex]

Step-by-step explanation:

we have

[tex]f(x)=x^{2} +7[/tex]

[tex]g(x)=\frac{x+2}{x}[/tex]

we know that

[tex](fog)=(\frac{x+2}{x})^{2} +7[/tex]

Evaluate the expression for x=-4

[tex](fog)(-4)=(\frac{-4+2}{-4})^{2} +7[/tex]

[tex]=(\frac{1}{2})^{2} +7[/tex]

[tex]=(\frac{1}{4})+7[/tex]

[tex]=\frac{29}{4}[/tex]

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