Question

Add (8.9 X 10⁹) + (6.2 X 10⁶)

A. 89.062 X 10⁸
B. 8.9062 X 10⁹
C. 890.62 X 10⁷
D. 8.9062 X 10⁸

Answer 1

To add numbers in scientific notation, rewrite the numbers with the same exponent and then add the numbers together. The correct answer is 8.9062 x 10^9.

Step-by-step explanation:

To add the numbers in scientific notation, we need to have the same exponent. In this case, we can rewrite the numbers in the form of (8.9 X 109) + (0.0062 X 109). Now, we add the numbers together, which gives us 8.9062 X 109. Therefore, the correct answer is option B.