Question

Please choose the answer that describes the scientific notation for 3,134,000,000.

A. 3.143 × 1045
B. 3.143 × 109
C. 31.34 × 109
D. 3.134 × 109

Answer 1

I believe you messed up on your choices, and here are the correct choices I believe:

3.143 × 10^45
3.143 × 10^9
31.34 × 10^9
3.134 × 10^9

After knowing these are the correct choices, we can determine which answer is correct. Since choice D equals 3,134,000,000, we know that this is the answer. :)

Answer 2

Well, the answer is obviously D, because it's the only one that starts with 3.134.

Moving the decimal place 9 times to the right will give us:

3,134,000,000


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