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In February 2010, the population of the world was approximately 6 800 000 000 people. Another way of writing this number is a.6.8 × 10^8 b.6.8 × 10^9 c.68 × 10^9 d. 68 × 10^10

In February 2010, the population of the world was approximately 6 800 000 000 people. Another way of writing this number is a.6.8 × 10^8 b.6.8 × 10^9 c.68 × 10^9 d. 68 × 10^10
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2 votes
In February 2010, the population of the world was

approximately 6 800 000 000 people.
Another way of writing this number is
a.6.8 × 10^8
b.6.8 × 10^9
c.68 × 10^9
d. 68 × 10^10

User Jon Tirsen
by
9.0k points

2 Answers

2 votes
The answer to your question is A.) , because there are 8 zeros which make it to the power of 8, by 10.
User Adeel Iftikhar
by
8.2k points
3 votes
The correct choice is 'B'. The correct exponent is +9. In order to change 6.8 into 6,800,000,000 you have to move the decimal point 9 places in the LARGER direction.
User Ben Osborne
by
8.4k points
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