For this case we have that, by definition, the domain of a function is given by all the values for which the function is defined.
Having said that, we have the following function:

It is not defined when the denominator is equal to 0. That is:

Thus, the domain of r (x) is given by all real numbers except 1.
Answer:
all real numbers except 1.
Option A
Answer:
y= -11
Step-by-step explanation:
After rearranging equation 2, we get x= y+3/2
Sub it into equation 1
y= 3(y+3/2) + 1
y= 3y+9/2 + 1
y= 3y + 11 / 2
2y = 3y + 11
-y = 11
y = -11
0.6 (y + 3) = 4.8
y+3 =4.8/0.6
y + 3 = 8
y = 8 - 3 = 5
y = 5
The perimeter solved shows that the dimensions of the rectangle are 32 and 10.
<h3>How to calculate the perimeter</h3>
Let the width be w
Length = 3w + 2
Perimeter = 2(length + width)
Perimeter = 2(3w + 2) + 2w
6w + 4 + 2w = 84
8w + 4 = 84
8w = 84 - 4
w = 80/8
w = 10
Length = 3w + 2
Length = 3(10) + 2
Length = 32
The dimensions of the rectangle are 32 and 10.
Learn more about perimeter on:
brainly.com/question/19819849