Question

Determine o valor de x na equação exponencial 10×-5=1/100
(1 sobre 100)

Answer 1

Resposta:

x=3

Explicação passo-a-passo:

$\displaystyle 10^{x-5}=\frac{1}{100} \\\\\\10^{x-5}=\frac{1}{10^2}\\\\\\10^{x-5}=10^{-2}\\\\x-5=-2\\x=-2+5\\x=3$