The value of is 4.
By Geometry, we know that line segment , which is equivalent to:
(1)
Now we solve algebraically the resulting expression.
If we know that , then we solve the equation for
:
The value of is 4.
We kindly invite to see this question on line segments: brainly.com/question/23297288
Using it's concept, it is found that the domain for the expressions is, respectively, given by:
It is the <u>set that contains all possible input values</u>.
In a fraction, the denominator cannot be zero, hence:
The third expression can be simplified, as:
(x + 5)/(x + 5) = 1.
The same is true for the fourth, as:
x²/x = 1.
Neither has any restriction, hence their domain is all real numbers, represented by .
More can be learned about the domain of a function at brainly.com/question/25897115