Answer:
3,140
Explanation:
3.14 x 10^3
The notation is solved by moving the decimal point 3 places to the right being the number of times 10 is raised.
After moving twice, the point will be right in front of 4, making the number 314.0
As such the 3rd movement of the point to the right makes the number 3140
Hence,
3.14 x 10^3 = 3,140