Question

What is the sum of 4.2 × 10^5 and 5.3 × 10^5?

A 95 × 10^5
B 95 × 10^10
C 9.5 × 10^5
D 9.5 × 10^10

Answer 1

C.) 9.5 × 10^5 is the sum of 4.2 × 10^5 and 5.3 × 10^5

Answer : C.) 9.5 × 10^5

Answer 2

C  is the correct answer using scientific notation Hope this helps! :D