Unit analysis is a method used to convert from one unit of measure to another. In a unit analysis problem, we place measurements into fraction form, build a product of fractions, and eliminate unwanted units. The steps for performing a unit analysis are as follows: Determine what conversion facts are needed
Answer:
The length of the side of a square is 
Step-by-step explanation:
Area of square = 
We need to find length of the side
The formula used will be:

Putting value of area of square, we can find length

So, length of the side of a square is 
Answer:
D. 50
Step-by-step explanation:
Width: 2z × sqrt(var/n)
Interval is wider when:
z is higher
n is smaller
In the options, least value of n is 50
A is the correct answer i'm pretty sure