Which answer is not in scientific notation?

A. 6 · 10^25

B. 2.01 · 10^-2

C. 1.3 · 10^-4

D. 0.5 · 10^3

D. 0.5 · 10^3

Step-by-step explanation:

is in the form

a * 10 ^b

Scientific notation has one number (not zero) before the decimal and b is an integer

A. 6 · 10^25 True

B. 2.01 · 10^-2 True

C. 1.3 · 10^-4 True

D. 0.5 · 10^3 False this does not have one number before the decimal)