place the number in descending order.

4.3x10^-5, 6.4x10^-6, 4.3x10^-6, 6.4x10^-4

1 answer

To place the numbers in descending order, we need to convert them into standard decimal form:

  1. \(4.3 \times 10^{-5} = 0.000043\)
  2. \(6.4 \times 10^{-6} = 0.0000064\)
  3. \(4.3 \times 10^{-6} = 0.0000043\)
  4. \(6.4 \times 10^{-4} = 0.00064\)

Now, we can compare these decimal values:

  • \(6.4 \times 10^{-4} = 0.00064\)
  • \(4.3 \times 10^{-5} = 0.000043\)
  • \(6.4 \times 10^{-6} = 0.0000064\)
  • \(4.3 \times 10^{-6} = 0.0000043\)

In descending order, the numbers are:

\(6.4 \times 10^{-4}, 4.3 \times 10^{-5}, 6.4 \times 10^{-6}, 4.3 \times 10^{-6}\)