Subtract. Write your answer in scientific notation.
(1.3 × 10⁶) – (9.72 × 10⁵)
7 × 10⁵
3.28 × 10⁵
2.1 × 10⁵
8.407 × 10⁵
Subtract. Write your answer in scientific notation. (1.3 × 10⁶) – (9.72 × 10⁵)
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Subtract. Write your answer in scientific notation.
(1.3 × 10⁶) – (9.72 × 10⁵)
7 × 10⁵
3.28 × 10⁵
2.1 × 10⁵
8.407 × 10⁵
To subtract the numbers in scientific notation, we first need to ensure they have the same exponent.
1. Convert (9.72 times 10^5) to the same exponent as (1.3 times 10^6):
[
9.72 times 10^5 = 0.972 times 10^6
]
2. Now, we can perform the subtraction:
[
(1.3 times 10^6) – (0.972 times 10^6) = (1.3 – 0.972) times 10^6
]
3. Calculate the subtraction:
[
1.3 – 0.972 = 0.328
]
4. Write the result in scientific notation:
[
0.328 times 10^6 = 3.28 times 10^5
]
So, the correct answer is (3.28 times 10^5).