Question

2.10-⁴+ 7.10 -⁴
(7.10⁸).(3.10⁵)
18.10:6.10⁵
NOTAÇÃO CIENTÍFICA ​

Answer 1

Resposta:

2.10-⁴+ 7.10 -⁴ = (2+7) 10 -⁴ = 9.10 -⁴

(7.10⁸).(3.10⁵) = (7.3).(10⁸.10⁵) = 21.10 ⁸+⁵ = 21.10¹³ = 2,1.10¹⁴

18.10:6.10⁵ = (18÷6).(10.10⁵) = 3.10⁶