Question

notaçao cientifica :a)1,2.10^3 b)3,2.10^-3 c)3,8.10^7 d)2,71.10^-4 e)2.10^5 f)1,5.10^-4

Answer 1

Notaçao cientifica :a)1,2.10^31,2.10³ =
1,2.1000 = 1.200




b)3,2.10^-33,2.1/10⁺³ =
3,2.1/1000
3,2/1000 = 0,0032


c)3,8.10^73,8.10⁷
3,8.10.000.000 = 38.000.000



d)2,71.10^-42,71 . 1.10⁻⁴ 
2,71 . 1/10.000 =
2,71/10.000 =
0,000271


e)2.10^5
2.10⁵ =
2.100.000 = 200.000
 


f)1,5.10^-4
1,5.10⁻⁴ =
1,5.1/10.000 =
1,5/10.000 = 0,00015