Which number is the largest?

A. 1.2 x 10⁴

B. 4.5 x 10-³

C. 3.8 x 10³

D. 7.5 x 10³

A. 1.2 x 10⁴

Step-by-step explanation:

The number with the largest power of ten will be the biggest. In this case, it is A as 4 is > 3 and 4 > - 3. If two numbers had the same power of ten, the larger number would be the largest.

A. 1.2 x 10⁴ = 12000

B. 4.5 x 10-³ = 0.0045

C. 3.8 x 10³ = 3800

D. 7.5 x 10³ = 7500

12000 is the largest.