Question

alguém me ajuda no exercício 4 e 5 é urgente quem souber me ajude pfv :) ^-^

Answer 1

$4\°)\\ a)~0,0000181=1,81\times 10^{-5}\\ b)~8.300.000.000=8,3\times 10^{-9} c)~0,038000= 3,8\times 10^{-2}\\ d)~0,000000042= 4,2\times 10^{-8}\\ 5\°) a) \frac{1}{3^2}=3^{-2}~~~b)\left(\frac {1}{5}\right)^5=5^{-5}\\ c)0,001=1/1000=1000^{-1}~~d)0,00001=1/100.000=100.000^{-1}\\ e)0,333...=2/6=2\times 6^{-1}~~f)0,111...=1/9=9^{-1}$

c868a2a50f9c87af53eaed81951a218b.pdf