Question

What is 221,000,000,000,000,000,000 expressed in scientific notation? a.2.21 × 1021 b.2.21E20 c.2.21E21 d.2.21E-20 e.2.21 × 10-21 f.2.21 × 10-20 g.2.21 × 1020 h.2.21E-21

Answer 1

Answer:

221,000,000,000,000,000,000 = 2.21 x 10^20

therefore, the answer is b

Step-by-step explanation:

Answer 2

Answer:

The Answer Is B and G

Step-by-step explanation:

I went and clicked all the answers and found out these two were the correct answer.