Question

What is the number 7.3×10 superscript −8
written in decimal notation?(1 point)
Responses

730,000,000
730,000,000

0.0000000073
0.0000000073

0.00000007.3
0.00000007.3

0.000000073

Answer 1

To convert the scientific notation \( 7.3 \times 10^{-8} \) into decimal notation, you move the decimal point in the number \( 7.3 \) eight places to the left (because of the negative exponent).

Starting with \( 7.3 \):

1. Move the decimal point left 1 place: 0.73
2. Move left 2 places: 0.073
3. Move left 3 places: 0.0073
4. Move left 4 places: 0.00073
5. Move left 5 places: 0.000073
6. Move left 6 places: 0.0000073
7. Move left 7 places: 0.00000073
8. Move left 8 places: 0.000000073

Thus, \( 7.3 \times 10^{-8} \) in decimal notation is \( 0.000000073 \).

The correct response is:

**0.000000073**