Question

Which set of numbers is arranged in descending order? (1 point)
7.2 × 10-30
,7 × 10-30
7.6 × 10-25,7.2 × 10-25
7.6 × 10-25
, 7.2 × 10-30
7.2 × 10-25
, 7 × 10-30
7.6 × 10-25
, 7.2 × 10-25
7.2 × 10-30
, 7 × 10-30
7 × 10-30,7.2 × 10-25
7.2 × 10-30
,7.6 × 10-25

Answer 1

To arrange the numbers in descending order, we should first convert them into decimal form for better comparison:

1. \(7.2 \times 10^{-30} = 0.0000000000000000000000000000000072\)
2. \(7 \times 10^{-30} = 0.000000000000000000000000000000007\)
3. \(7.6 \times 10^{-25} = 0.000000000000000000000000000076\)
4. \(7.2 \times 10^{-25} = 0.000000000000000000000000000072\)

Now we can compare these values:
- \(7.6 \times 10^{-25}\) is the largest.
- \(7.2 \times 10^{-25}\) comes next.
- \(7.2 \times 10^{-30}\) is smaller than \(7 \times 10^{-30}\).
- \(7 \times 10^{-30}\) is the smallest.

Thus, the numbers in descending order are:

**7.6 × 10⁻²⁵, 7.2 × 10⁻²⁵, 7.2 × 10⁻³⁰, 7 × 10⁻³⁰**