radomes.openskiesproject.org
YolandeWaskiewicz YolandeWaskiewicz
  • 26-06-2014
  • Mathematics
Answered

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

D68 × 10^10

Verified Answer :

keegster
keegster keegster
  • 26-06-2014

The answer to your question is A.) , because there are 8 zeros which make it to the power of 8, by 10.

Answer Link
AL2006
AL2006 AL2006
  • 26-06-2014

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.

Answer Link

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