Question

De acordo com a figura, o valor de x-1 (elevado a -1).

Precizo das contas, obrigada

Answer 1

 OLá,

 Encontremos o inverso de x:

$\frac{4}{12}=\frac{2}{x}\\\\\frac{4}{2\cdot12}=\frac{1}{x}\\\\\frac{1}{x}=\frac{4^{\div(4}}{24^{\div(4}}\\\\\frac{1}{x}=\frac{1}{6}\\\\\boxed{x^{-1}=\frac{1}{6}}$


 Encontremos y:

$\frac{4}{12}=\frac{3}{y}\\\\\frac{1}{3}=\frac{3}{y}\\\\y\cdot1=3\cdot3\\\\\boxed{y=9}$


 Logo,

$x^{-1}\cdot\,y=\\\\\frac{1}{6}\cdot9=\\\\\frac{9^{\div(3}}{6^{\div(3}}=\boxed{\boxed{\frac{3}{2}}}$