Answer:
I thinks its 3.91 x 10^3
Step-by-step explanation:
follow these steps
Step 1
To find a, take the number and move a decimal place to the right one position.
Step 2
Now, to find b, count how many places to the right of the decimal.
Step 3
Building upon what we know above, we can now reconstruct the number into scientific notation.
Remember, the notation is: a x 10^b
