Answer
8.9 $\times$ $10^{4}$
Work Step by Step
We need to write 89,000 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 8.9
The decimal point has moved 4 places to the right, so the exponent of 10 will be 4.
So, 89,000 = 8.9 $\times$ $10^{4}$
