The notation 1.3E-2 represents \(1.3 \times 10^{-2}\). To express this in decimal form, we need to move the decimal point two places to the left:
1.3 → 0.013
Now we can analyze the options provided:
- 13 × 10 exponent 2: This represents \(13 \times 10^{2} = 1300\), which is not equivalent.
- 130: This is just the number 130, which is not equivalent.
- 0.013: This is equivalent to \(1.3 \times 10^{-2}\).
- -0.013: This is not equivalent, as it is negative.
- 1.3 × 10 exponent -2: This is equivalent to \(1.3E-2\) or \(1.3 \times 10^{-2}\).
The correct answers are:
- 0.013
- 1.3 × 10 exponent -2