Answer:
Review:
What is scientific notation: It is a number that is between 1-10 and is written in exponents.
Instruction:
We need to re-write the number "39,800,000" that is between 1-10 and is written in exponents.
Solution:
- => 39,800,000 = 398 x 10⁵
This is still not in scientific notation form because it is not between 1-10. Let's simplify further.
- => 398 x 10⁵ = 3.98 x 10⁵⁺²
- => 3.98 x 10⁷
This is now in scientific notation form because it follows the 2 reasons to form a scientific notation.
Conclusion:
Therefore, 3.98 x 10⁷ is the number in scientific notation.
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