Question

o valor de (0,2)^3 + (0,16) ^2 é:
no gabarito esta 0,0336, mas não consegui chegar a resposta

Answer 1

0,2 . 0,2 .0,2 =
0,04 . 0,2 = 0,008

0,16 . 0,16 = 0,0256

0, 008 + 0,0256 = 0,0336                      ok

Answer 2

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