Population of a city is given at 3.45x10^6 a nearby city has a population of 1.3x10^5 what is the sum of the populations of the two cities in scientific notation?

Answer 1

The sum of the populations of the two cities in scientific notation can be found by adding the two numbers together:

(3.45x10^6) + (1.3x10^5)

To add these numbers, we need to first adjust the exponents so they have the same power of 10. We can do this by moving the decimal point to the right in the number with the smaller exponent (1.3x10^5) two places to make it (0.013x10^6).

Now we can add the two numbers:

3.45x10^6 + 0.013x10^6

= (3.45 + 0.013)x10^6

= 3.463x10^6

Therefore, the sum of the populations of the two cities in scientific notation is 3.463x10^6.