Posted by **Devon** on Tuesday, December 16, 2008 at 1:19am.

convert the number to scientific notation.

.0000000009

- Math -
**Reiny**, Tuesday, December 16, 2008 at 1:27am
In scientific notation, the decimal place is always after the first significant figure, in this case the 9

count the number of places you would have to move the decimal, that becomes your exponent of 10

so 9.0 x 10^10

- Math -
**bryan**, Tuesday, December 16, 2008 at 1:30am
90,000,000,000

- Math -
**gr**, Tuesday, December 16, 2008 at 1:33am
You move decimal place after first significant figure and number of places you move does become your exponent but when you move right, exponent is negative and when you move left exponent is positive. Since in this case we are moving decimal to right by 10 places the exponent will be -10. Hence scientific notation would be 9.0*10^-10

- Math -
**bryan**, Tuesday, December 16, 2008 at 1:35am
is this correct?

- Math -
**Anonymous**, Tuesday, December 16, 2008 at 1:41am
90,000,000,000??

- Math -
**Anonymous**, Tuesday, December 16, 2008 at 1:41am
seems right

- Math -
**Damon**, Tuesday, December 16, 2008 at 4:26am
gr has it right

9 * 10^-10

- Thanks Damon & gr -
**Reiny**, Tuesday, December 16, 2008 at 9:08am
Thanks to both of you for correcting my blatant typing error.

Perhaps I shouldn't attempt to answer questions at 1:30 A.M. anymore, lol

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