What is the number 7.3×10^−8

Question

 written in decimal notation?(1 point)
Responses

0.00000007.3
0.00000007.3

730,000,000
730,000,000

0.0000000073
0.0000000073

0.000000073
0.000000073
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Answer 1

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

Starting with \( 7.3 \):

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

Thus, \( 7.3 \times 10^{-8} = 0.000000073 \).

The correct response is: 0.000000073.