Resposta:
160 × 10 ^ (–2)
Explicação passo-a-passo:
0,5 = 5 × 10 ^ (–1)
0,00008 = 8 × 10 ^ (–5)
40000 = 4 × 10 ^ 4
5 × 10 ^ (–1) × 8 × 10 ^ (–5) × 4 × 10 ^ 4 =
40 × 10 ^ (–6) × 4 × 10 ^ 4 =
