Answer:
2 x 10^3
Explanation:
4.5 x 10^-4 minus 3 x 10 ^ -6
4.5 - 3 = 1.5 10^-4 - 10^-6 = 10 ^2
1.5 rounded is 2
final answer is 2 x 10^2
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Answer: The answer is 2 x 10²
Step-by-step explanation: I got it right in the test
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