Question

Question #0c929

Answer 1

`3.15*10^2`

Explanation:

Scientific notation (also called standard form) is to write a number in the form of
`a*10^x`
where
a: `1<=x<10`
x: the number of places that we have to move the decimal point

So as for number 315
The decimal point has to be moved 2 places
Therefore,
`3.15*10^2`