Question

The population of a city is given as 3.45×10^6
. A nearby city has a population of 1.3×10^5
. What is the sum of the populations of the two cities in scientific notation?(1 point)
Responses

4.75×10^5

4.75 times 10 superscript 5 baseline

4.75×10^11

4.75 times 10 superscript 11 baseline

3.58×10^6

3.58 times 10 superscript 6 baseline

35.8+10^5

Answer 1

3.58×10^6

Explanation: 1.3×10^5 = 0.13×10^6, so 3.45×10^6 + 0.13×10^6 = 3.58×10^6.