Question

a resp seria " a " ?

Answer 1

$\frac{2}{2.83} = \frac{1}{y} \\ 2y = 2.83 \\ y = \frac{2.83}{2} = 1.415$


$\frac{2.83}{x} = \frac{1.415}{2.12} \\ 1.415x = 5.9996 \\ x = \frac{5.9996}{1.415} = 4.24$

Resposta: letra "b".



Bons estudos :p