Answer :
Answer:
3.8 × 10⁶
Step-by-step explanation:
To determine how much larger the US is than Japan, we need to subtract the land area of Japan from the land area of the US.
Given information:
- Land area of the United States ≈ 4 × 10⁶ square miles
- Land area of Japan ≈ 2 × 10⁵ square miles
Therefore:
[tex](4 \times 10^6) - (2 \times 10^5)[/tex]
In scientific notation, if we shift the decimal point one place to the left, we increase the exponent by 1. Therefore, we can express 2 × 10⁵ as 0.2 × 10⁶:
[tex](4 \times 10^6) - (0.2 \times 10^6)[/tex]
Now, factor out the common multiple 10⁶:
[tex](4-0.2) \times 10^6[/tex]
Simplify:
[tex]3.8 \times 10^6[/tex]
So, the United States is about 3.8 × 10⁶ larger than Japan.
