Question

Use scientific notation to perform
0.07x1600/0.0004

Answer 1

`0\underbrace{.07}_(\to2)=7*10^(-2)\\\\1\underbrace{600}_(\leftarrow3)=1.6*10^3\\\\0\underbrace{.0004}_(\to4)=4*10^(-4)\\\\(0.07*1600)/(0.0004)=(7*10^(-2)*1.6*10^3)/(4*10^(-4))=(7*1.6)/(4)*10^(-2+3-(-4))=\boxed{2.8*10^5}`