The population of Charlotte, North Carolina is approximately 840,000. What is this number in scientific notation?

8.4 × 10⁵

Step-by-step explanation:

Step-by-step explanation:

In order to turn a scientific notation into standard form you must move the decimal point as many times as the exponent depending on if the exponent is a negative or a positive. (negative goes to the left, positive goes to the right)

The exponent is positive therefore the decimal point goes to the right:

Hope this helps.

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

i believe your answer is 99.7% of 7-year-old children are between 46.6 inches and 49.5 inches tall.