Express this number in scientific notation.

Answer:
The answer is 3.643•10^-1.
Step-by-step explanation:
Move the decimal until it is between the first and second number
You move it one time and this is a decimal so the exponent will be -1.
3.643 x 10^-1. The exponent is -1 because you moved to the right once instead of the left.
Left = positive. right = negative