. A nearby city has a population of . What is the sum of the populations of the two cities in scientific notation?

Answer 1

It seems that the population of the nearby city was not specified in your question. However, I can demonstrate how to add two populations in scientific notation if you provide the population numbers.

For example, if the population of the first city is $3.5\times {10}^5$ (350,000) and the population of the nearby city is $4.2\times {10}^4$ (42,000), you would add them as follows:

1. Convert both populations to the same power of ten if necessary:

   • $4.2\times {10}^4$ can be converted to $0.42\times {10}^5$.

2. Now add the two populations: $$3.5\times {10}^5+0.42\times {10}^5=(3.5+0.42)\times {10}^5=3.92\times {10}^5.$$

If you provide the specific populations, I can help you find the correct sum.