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
A. 4.75 times 10 superscript 11 baseline
B. 4.75 times 10 superscript 5 baseline
C. 3.58 times 10 superscript 6 baseline
D. 35.8 plus 10 superscript 5 baseline
To find the sum of the populations, we need to add the two populations together. The population of the first city is 3.45×10^6 and the population of the second city is 1.3×10^5.
To add these two numbers, we need to put them in the same form. Let's convert the population of the second city to scientific notation:
1.3×10^5 = 0.13×10^6 (since 1.3×10^5 = 0.13×10^6)
Now we can add the two populations:
3.45×10^6 + 0.13×10^6 = 3.58×10^6
Therefore, the sum of the populations of the two cities in scientific notation is 3.58×10^6.
The correct answer is C. 3.58 times 10^6.