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

1 answer

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.