Question

What is 4,210,000,000 written in scientific notation?

A 421 x 10 to the 9th power

B 42.1 x 10 to the 8th power

C 4.21 x 10 to the 9th power

D 4.21 x 10 to the 10th power

Answer 1

4.21*10 to the 9th power

Explanation:

4 is the first whole number; Place an decimal point just after and include the whole numbers afterward as the decimal; 4.21. Then count everything beyond the first whole number and you get 9 (including zeros) .

Therefore, 4.21 * 10 to the 9th power