Question

Place the numbers in descending order.

2.3 × 10−10
; 3.2 × 10−10
; 2.3 × 10−12
; 2.3 × 10−8

Answer 1

To place the numbers in descending order, we can first convert them into decimal form for easier comparison. Here are the numbers converted:

1. \(2.3 \times 10^{-10} = 0.00000000023\)
2. \(3.2 \times 10^{-10} = 0.00000000032\)
3. \(2.3 \times 10^{-12} = 0.0000000000023\)
4. \(2.3 \times 10^{-8} = 0.000000023\)

Now, we can compare the decimal values:

- \( 2.3 \times 10^{-8} = 0.000000023 \)
- \( 3.2 \times 10^{-10} = 0.00000000032 \)
- \( 2.3 \times 10^{-10} = 0.00000000023 \)
- \( 2.3 \times 10^{-12} = 0.0000000000023 \)

Now, arranging them in descending order:

1. \(2.3 \times 10^{-8}\)
2. \(3.2 \times 10^{-10}\)
3. \(2.3 \times 10^{-10}\)
4. \(2.3 \times 10^{-12}\)

So, the final order in descending format is:

**2.3 × 10^{-8}; 3.2 × 10^{-10}; 2.3 × 10^{-10}; 2.3 × 10^{-12}**