Question

Which of the following is written in scientific notation correctly?

A. 0.0042
B. 7.4*10^9
C. 34*10^9
D. 5900000

Answer 1

The answer is B.thus 7.4*10^9

Explanation:

This is because,in scientific notation, we deal with numbers which are in the standard form

And from alt A-D , only the alt B is in the standard form. the rest are not in the standard form hence cannot be considered them as written In scientific notation.