Posted by **Deborah** on Wednesday, January 9, 2013 at 9:31pm.

Which of the following expressions is written in scientific notation?

A.)73.4 x 10^5

B.)0.09 × 10^7

C.)80 x 10^3

D.)4.22 x 10^–3

I think it is D.

Thank you.

- Math -
**PsyDAG**, Thursday, January 10, 2013 at 1:17pm
I agree.

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