The population of a city is given as 3.45x10^6. A nearby city has a population of 1.3x10^5. What is the sum of the population of the two cities in scientific notation

Answer 1

The population of the first city is 3.45x10^6.
The population of the second city is 1.3x10^5.
To find the sum of the populations, we need to add these two numbers together.
Since both numbers are in scientific notation, we need to have the same exponent before we can add them.
To do this, we need to convert the second number to have a exponent of 6, like the first number.
To do this, we need to multiply the second number by 10^1.
1.3x10^5 * 10^1 = 1.3x10^6.
Now both numbers are in scientific notation with an exponent of 6.
Adding these two numbers, we get 3.45x10^6 + 1.3x10^6 = (3.45+1.3)x10^6 = 4.75x10^6.
So, the sum of the population of the two cities in scientific notation is 4.75x10^6. Answer: \boxed{4.75x10^6}.