Question

resolva a expressão a seguir:

Answer 1

Resposta:

y=9

Explicação passo-a-passo:

$\displaystyle\\y=\frac{(-5)^2-4^2+\left(\frac{1}{5}\right)^0 }{3^{-2}+1} =\\\\\\\frac{(-5)(-5)-4.4+1 }{\frac{1}{3^2} +1} =\\\\\\\frac{25-16+1 }{\frac{1}{9} +1} =\\\\\\\frac{10 }{\frac{1+9}{9}} =\\\\\\\frac{10 }{\frac{10}{9}} =\\\\\\10.\frac{9}{10}=\\\\\\9$