Answer:
Step-by-step explanation:
To make it easier to understand, consider the exponent of a number with no decimals, with 1 decimal and with 2 decimals:
- No decimals - the exponent has no decimals
- 1 decimal - put the number as (a*10⁻¹)ⁿ = aⁿ10⁻ⁿ, there will be n decimals
- 2 decimals - similar to above- (a*10⁻²)ⁿ = aⁿ10⁻²ⁿ, there will be 2n decimals
Since our given number is (0.23)⁹, with 2 decimal places, its exponent will have 2*9 = 18 decimals.
