Answer:
yes it does equal 72
Step-by-step explanation:
Since you're adding x feet to the length which is 12 feet:
New area: (12+x)10.5
Answer: The domain of the function
is:
Interval Notation: (-∞ , -7) ∪ (-7 , 0) ∪ (0 , 7) ∪ (7, ∞)
Set-Builder Notation: { x | x ≠ 0 , 7 , -7 }
All real numbers besides 0, 7, and -7.
Step-by-step explanation:
In order to find the domain of your rational function, we need to simplify it:

Remember, most of the time, the domain of a rational function consists of all real numbers besides zero.
To find the domain, we equal the equations in the denominator to zero.

--> 
--> 
So all real numbers except for 0, -7, and 7 are in the domain of this rational function.
B=7
3(b-4)+5b=44
3b-12+5b=44
8b=44+12
8b=56
b=7
The absolute value makes it 9