Question

Which of these is correct?

(4.6×10^5)(2.1×10^4)=2.5×10

(8.8×10^8)(4.2×10^7)=13×10^15

(2.9×10^8)(1.3×10^7)=3.77×10^15

(9.9×10^7)(5.8×10^6)=5.72×10^13

Answer 1

[AI-generated answer — Bot GPT 3.5]

The correct answer is (9.9×10^7)(5.8×10^6)=5.742×10^14