Question

Qual a notação cientifica de 749 x 10^7

Answer 1

Observe:

$749.10^{0} = 749 . 1 = 749\\ 749.10^1 = 749 . 10 = 7490\\ 749.10^2 = 749 . 100 = 74900\\ 749.10^3 = 749 . 1000 = 749000\\ 749.10^4 = 749 . 10000 = 7490000\\ 749.10^5=749.100000 = 74900000\\ 749.10^6 = 749.1000000 = 749000000\\ 749.10^7 = 749.10000000 = 7490000000$

Logo 749 . 10^7 = 7.490.000.000

Transformando em notação cientifica

$7490000000 = 7,49 . 10^9$