Question

2-calcule indicando o resultado em notacao cientifica
a)4.10^6.3.10^5
b)4.10^13 -- 3.10^5
c)2.10^5.5.10^4
d)9.10^9.10-6.2.10^-6
e)10^9.3.10^-3.2.10^-6
f)0,000025.5000000​

Answer 1

a) 4 × 10⁶ × 3 × 10⁵

⠀⠀(4 × 3) × 10⁶⁺⁵

⠀⠀12 × 10¹¹

b) 4 × 10¹³ - 3 × 10⁵

⠀⠀40000000000000 - 300000

⠀⠀39999999700000

⠀⠀3.99999997 × 10¹³

c) 2 × 10⁵ × 5 × 10⁴

⠀⠀(2 × 10) × 10⁵⁺⁴

⠀⠀20 × 10⁹

⠀⠀2 × 10¹⁰

d) 9 × 10⁹ × 10⁻⁶ × 2 × 10⁻⁶

⠀⠀(9 × 2) × 10⁹⁻⁶⁻⁶

⠀⠀18 × 10⁻³

⠀⠀1.8 × 10⁻²

e) 10⁹ × 3 × 10⁻³ × 2 × 10⁻⁶

⠀⠀(3 × 2) × 10⁹⁻³⁻⁶

⠀⠀6 × 10⁰

f) 0.000025 × 5000000

⠀⠀2.5 × 10⁻⁵ × 5 × 10⁶

⠀⠀(2.5 × 5) × 10⁻⁵⁺⁶

⠀⠀12.5 × 10

⠀⠀1.25 × 10²

Espero Ter Ajudado !!