In descending order, the numbers are 2.3 × 10^(-8), 3.2 × 10^(-10), 2.3 × 10^(-10), and 2.3 × 10^(-12).
To compare the given numbers and arrange them in descending order, it is essential to focus on the powers of 10 and then compare the coefficients. The numbers are:
2.3 × 10^(-10)
3.2 × 10^(-10)
2.3 × 10^(-12)
2.3 × 10^(-8)
Firstly, compare the powers of 10. The exponent indicates the magnitude of the number. In this case, 10^(-12) is the smallest exponent, so 2.3 × 10^(-12) is the smallest number among the given ones.
Next, compare the coefficients. Among the numbers with the same exponent (10^(-10)), 2.3 is smaller than 3.2, so 3.2 × 10^(-10) is greater than 2.3 × 10^(-10).
Finally, 2.3 × 10^(-8) has the largest exponent (10^(-8)), making it the largest number among the given ones.
Therefore, the numbers in descending order are:
2.3 × 10^(-8)
3.2 × 10^(-10)
2.3 × 10^(-10)
2.3 × 10^(-12)