Answer:
The answer is irrational
Step-by-step explanation:
we know that
The area of a square is given by the formula

where
b is the length side of the square
In this problem we have

substitute in the formula

take the square root both sides

simplify

Remember that
A <u><em>Rational Number</em></u> is a number that can be made by dividing two integers
so
The length side is not a integer
therefore
The answer is irrational
Answer: 12
Step-by-step explanation:
R2-4r-77 = (r-11)(r+7)
r has to be greater than 11 in order for the formula to represent the area of a rug since a side length cannot be less than or equal to 0.
Absolute value was $55. I don't really get the problem...