place the numbers in descending order. 2.3 x 10^-10; 3.2 x 10^-10; 23 x 10^-12; 2.3 x 10^-8
The numbers in descending order are:
2.3 x 10^-8 > 2.3 x 10^-10 > 3.2 x 10^-10 > 23 x 10^-12
To place the numbers in descending order, we need to compare the values of the numbers.
The given numbers are:
2.3 x 10^-10
3.2 x 10^-10
23 x 10^-12
2.3 x 10^-8
To compare these numbers, we need to compare their exponential parts first (10^-10, 10^-10, 10^-12, 10^-8), and then their coefficient parts (2.3, 3.2, 23, 2.3).
Comparing the exponential parts, we can see that 10^-12 is the smallest, followed by 10^-10, and finally, 10^-8.
Comparing the coefficient parts, we find that 23 is the largest, followed by 3.2, and finally, 2.3.
Now, let's combine the exponential and coefficient parts:
Descending order of the given numbers is:
23 x 10^-12
3.2 x 10^-10
2.3 x 10^-10
2.3 x 10^-8
To place the numbers in descending order, we need to compare their magnitudes.
First, let's convert all the numbers to scientific notation:
2.3 x 10^-10 = 0.23 x 10^-9
3.2 x 10^-10 = 0.32 x 10^-9
23 x 10^-12 = 2.3 x 10^-11
2.3 x 10^-8 = 23 x 10^-9
Now, let's compare their magnitudes. Remember, the smaller the exponent (negative exponent), the larger the number.
0.23 x 10^-9 is smaller than 0.32 x 10^-9 since 0.23 < 0.32.
Next, 0.23 x 10^-9 is smaller than 2.3 x 10^-11 since 0.23 < 2.3.
Finally, 2.3 x 10^-9 is smaller than 23 x 10^-9 since 2.3 < 23.
Therefore, arranging the numbers in descending order:
23 x 10^-12, 2.3 x 10^-10, 0.32 x 10^-9, 0.23 x 10^-9