Resposta :
Resposta:
[tex]\textsf{Leia abaixo}[/tex]
Explicação passo a passo:
[tex]\mathsf{log\:5 = 0,699}[/tex]
[tex]\mathsf{log\:20 = 1,301}[/tex]
[tex]\mathsf{5^x = 20}[/tex]
[tex]\mathsf{log\:5^x = log\:20}[/tex]
[tex]\mathsf{x\:log\:5 = log\:20}[/tex]
[tex]\mathsf{x = \dfrac{log\:20}{log\:5}}[/tex]
[tex]\mathsf{x = \dfrac{1,301}{0,699}}[/tex]
[tex]\boxed{\boxed{\mathsf{x = 1,861}}}\leftarrow\textsf{letra A}[/tex]