Question

Which choice correctly expresses the number below in scientific notation?

5,790,000

A) 5.79 • 10^7

B) 579 • 10^4

C) 57.9 • 10^5

D) 5.79 • 10^6

E) 579 • 10^6

F) 5.79 • 10^5

Answer 1

D

Explanation:

In scientific notation, the number that is being multiplied by the power of ten must be greater than or equal to 1 and less than 10. This eliminates options B, C, and E. The rest of the options are all 5.79 times something. To find that something, we can do 5,790,000 / 5.79 = 1000000 = 10⁶. This means that the answer is D.