The population of Austin is 698,269. What is the scientific notation
6.98269 x 10^5
Correct.
Right, but online, “*” is used to indicate multiplication to avoid confusion with “x” as an unknown.
6.98269 * 10^5
However, you could also round it.
6.98 * 10^5
To express a number in scientific notation, you need to move the decimal point until you have a number between 1 and 10, and multiply it by a power of 10.
In the case of the population of Austin, which is 698,269, you can move the decimal point to the left by five places, resulting in 6.98269. This gives you a number between 1 and 10. Since you moved the decimal point five places to the left, you need to multiply the number by 10 raised to the power of 5, which gives you 10^5.
Combining these two components, you get the scientific notation for the population of Austin as 6.98269 x 10^5.