Question

Alguém me ajuda nesta questão ​(Notação Científica)

Answer 1

Resposta:

$A=\dfrac{0,000168\times0,001}{0,024\times3,5}\\ \\ \\ A=\dfrac{1,68.10^{4}\times1.10^{-3}}{2,4.10^{-2}\times3,5}\\ \\ \\ A=\dfrac{(1,68\times1)(10^{-4-3})}{(2,4\times3,5).10^{-2}}\\ \\ \\ A=\dfrac{1,68.10^{7}}{8,4.10^{-2}}\\ \\ \\ A=(1,68\div8,4)(10^{-7}\div10^{-2})\\ \\ \\ A=0,2.(10^{-7-(-2)})\\ \\ \\ A=0,2.~10^{-7+2}\\ \\ \\ A=0,2.~10^{-5}\\ \\ \boxed{A=2.~10^{-6}}$