Question

Usando a notação científica calcular
a)120 x 6000 = b) 3000000/0,00015=
c) 650000x 350000=
d) 36000000/ 0,0004=

Answer 1

Resposta:

$a)120 \times 6000 = \\ 1.2 \times 10 {}^{2} . \: 6 \times 10 {}^{3} = 7.2 \times 10 {}^{5} \\ \\ b) \frac{3000000}{0.00015} = \\ \frac{3. \times 10 {}^{6} }{1.5 \times 10 {}^{ - 4} } = 2 \times 10 {}^{10} \\ \\ c)650000 \times 350000 = \\ 6.5 \times 10 {}^{5} \times.3.5 \times 10 {}^{5} \\ = 2.275 \times 10 {}^{11} \\ \\ d) \frac{36000000} {0,0004} = \\ \frac{3.6 \times 10 {}^{7} }{4 \times 10 {}^{ - 4} } = 9 \times 10 {}^{10}$

Acho que é isso.