The circumference of the Earth is approximately 25,000 miles. What is this number expressed in scientific notation?
A) 2.5 x 10^4
B) 2.5 x 10^3
C) 25 x 10^3
D) 2.5 x 10^4
The circumference of the Earth is approximately 25,000 miles. What is this number expressed in scientific notation?
A) 2.5 x 10^4
B) 2.5 x 10^3
C) 25 x 10^3
D) 2.5 x 10^4