Question

21. Scientific notation is a very convenient way to write large or small numbers and do calculations with them.
For example, the Earth's mass is about 5,973,600,000,000,000,000,000,000 kg. In scientific notation, this is written 5.9736 × 1024 kg.
Which of these is the correct scientific notation for the distance between the earth and the moon which is around 384400 km?
A. 3.844 × 103 km
B. 3.844 × 105 km
C. 3.84400 × 106 km
D. 3.84400 × 1024 km

Answer 1

answer is option b 3.844×10^5

because 3.844×10^5= 384400

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Answer 2

Answer:

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