Respuesta :
[tex]f(x)=x+7,\ g(x)=\dfrac{1}{x}\\\\(f\ \circ\ g)(x):\\\\\text{Change x to} \ \dfrac{1}{x}\ \text{in the equation of } f(x):\\\\\boxed{(f\ \circ\ g)(x)=\dfrac{1}{x}+7}[/tex]
[tex]f(x)=x+7,\ g(x)=\dfrac{1}{x}\\\\(f\ \circ\ g)(x):\\\\\text{Change x to} \ \dfrac{1}{x}\ \text{in the equation of } f(x):\\\\\boxed{(f\ \circ\ g)(x)=\dfrac{1}{x}+7}[/tex]