The population of a city is given as . A

Question

nearby city has a population of . What is the
sum of the populations of the two cities in scientific
notation? (1 point)
3.45 × 10
6
1.3 × 10
5
35.8 + 10
5
4.75 × 10
5
3.58 × 10
6
4.75 × 10
11

Answer 1

To find the sum of the populations of the two cities in scientific notation, we need to ensure both populations are expressed in the same power of ten.

The populations are given as:

• City A: \(3.45 \times 10^6\)
• City B: \(1.3 \times 10^5\)

First, we can convert the second city's population to the same power of ten as the first city's population:

\[ 1.3 \times 10^5 = 0.13 \times 10^6 \]

Now, we can add the populations:

\[ 3.45 \times 10^6 + 0.13 \times 10^6 = (3.45 + 0.13) \times 10^6 = 3.58 \times 10^6 \]

Therefore, the sum of the populations of the two cities in scientific notation is:

\[ \boxed{3.58 \times 10^6} \]