Question

What is 5.5×10^4 multiplied by 2.2×10^−8 ? Write the answer in scientific notation.

Answer 1

To multiply numbers in scientific notation, you need to multiply their coefficients and add their exponents.

5.5 × 10^4 multiplied by 2.2 × 10^-8 can be written as:

(5.5 × 2.2) × (10^4 × 10^-8)

= 12.1 × 10^-4

Since 12.1 is greater than 10, you can express it in scientific notation as:

1.21 × 10^1

Therefore, the answer in scientific notation is 1.21 × 10^1.