Question

Gente por favor me ajuda, resolução de 10 ​

Answer 1

432000 = 4,32.10^5

2100 = 2,1.10^3

0,03 = 3.10^-2

32000/0,02 = (3,2.10^4)/(2.10^-2) = (3,2/2).10^(4+2) = 1,6.10^6

56000000/(2000×0,00006) = 5,6.10^7/(2.10^3)×(6.10^-5) = 5,6.10^7/(2×6).10^(3-5) = 5,6.10^7/12.10^-2 = 5,6.10^7/1,2.10^-1 = (5,6/1,2).10^(7+1) = 4,67.10^8