Question

What is 221,000,000,000,000,000,000 expressed in scientific notation?

Answer 1

There are 2 answers

2.21E20

2.21 x 10^20

Explanation:

What is 221,000,000,000,000,000,000 expressed in scientific notation?

2.21 × 10^21

***2.21E20

2.21E21

2.21E-20

2.21 × 10^-21

2.21 × 10^-20

***2.21 × 10^20

2.21E-21

Answer 2

change the number to a decimal with just the numbers higher than 0 in this case

it would be 2.21 then count how many times you moved the decimal over to achieve that number ( in this case 20) since you moved the decimal to the left the power would be positive 20

so the scientific notation is 2.21 x 10^20