Answer
4.3 $\times$ $10^{-3}$
Work Step by Step
We need to write 0.0043 as the product of a number greater than or equal to 1 and less than 10, and an integral power of 10.
The number greater than or equal to 1 and less than 10 will be 4.3
The decimal point has moved 3 places to the left, so the exponent of 10 will be -3.
So, 0.0043 = 4.3 $\times$ $10^{-3}$
