Question

Me ajudem plsss qwp A)56,7×10-³+0,01×10³ B)15200×10¹²+3,54×10¹⁷ C)3,5×10⁷×4,3×10⁵ D)9,3×10-⁶:3,1×10-³

Answer 1

Resposta:

Olá, tudo bem?

A) 56,7 × 10-³ + 0,01 × 10³ =

567/10 × 1/10³ + 10-² × 10³

567/10⁴ + 10

567/100 + 10

100567/10000

B) 15200 × 10¹² + 3,54 × 10¹⁷ =

(15200 + 3,54 × 10⁵) × 10¹²

(1500 + 3,54 × 100000) × 10¹²

(1500 + 354000) × 10¹²

369200 × 10¹²

C) 3,5 × 10⁷ × 4,3 × 10⁵ =

15,05 × 10⁷ + 5

15.05 × 10¹²

1,505 × 10¹³

D) 9,3 × 10-⁶ ÷ 3,1 × 10-³ =

93/10 × 10-⁶ ÷ 31/10-³

93/10 × 10-⁶ × 10/31-³

3 × 10 -⁶ × 10-³

3 × 10-⁹

3 × 1/10⁹

3/10⁹

Espero ter ajudado, até.