Question

determine o valor de (0,2)3 + (0,16)2​

Answer 1

$(0,2)3 + (0,16)2 = (\frac{2}{10})3 + (\frac{16}{100})2 = \frac{2 \times 3}{10} + \frac{16 \times 2}{100} = \frac{6}{10} + \frac{32}{100} = \frac{92}{100} = 0,92$

Answer 2

$\sf \left(0,\:2\right)^3+\left(0,\:16\right)^2\\\\\\\sf 0.2^3=0.008\\\\\\\sf =0.008+0.16^2\\\\\\\sf 0.16^2=0.0256\\\\\\\sf =0.008+0.0256\\\\\\\sf 0.008+0.0256=0.0336\\\\\\\sf \to \boxed{\sf =0.0336}$