Answer:
(a) 2 × 10^5 population
(b) 3.3 × 10^8 population
Explanation:
Scientific notation is a way of expressing very large or very small numbers in a more compact form. It consists of two parts: a coefficient (a number typically between 1 and 10) and an exponent (a power of 10).
In this case:
In order to write a number in scientific notation, we need to move the decimal point so that there is only one non-zero digit to the left of the decimal point.
Let's start with Glendale's population in 2020:
Population of Glendale, California in 2020 = 200,000
To convert this to scientific notation, we need to move the decimal point one place to the left, so the coefficient is 2, and the exponent is 5 (because we moved the decimal point 5 places to the left):
Scientific notation for Glendale's population in 2020 is:
2 × 10^5
Now, let's do the same for the population of the United States in 2020:
Population of the United States in 2020 = 330,000,000
To convert this to scientific notation, we need to move the decimal point so that there is only one non-zero digit to the left of the decimal point. In this case, we need to move it 8 places to the left:
Scientific notation for the U.S. population in 2020 is:
3.3 × 10^8
So, the population of Glendale, California, in 2020 in scientific notation is 2 × 10^5, and the population of the United States in 2020 in scientific notation is 3.3 × 10^8.