Question

Convert 2.47x10^-3 to regular notation​

Answer 1

`\large\boxed{2.47*10^(-3)=0.00247}`

Explanation:

METHOD 1:

`\text{Use:}\ 10^(-n)=(1)/(10^n)\\\\2.47*10^(-3)=2.47*(1)/(10^3)=2.47*(1)/(1000)=(2.47)/(1000)\\\\=(2.47*100)/(1000*100)=(247)/(100000)=0.00247`

METHOD 2:

`a*10^n\\\\\text{If}\ n<0\ \text{then move the comma n places to the left.}\\\text{If}\ n>0\ \text{then move the comma n places to the right.}`

`\text{Therefore}\ 2.47*10^(-3)=0\underbrace{.002}_(\leftarrow3)47`

Answer 2

0.00247

Explanation: