I'll presume the slash is the fraction bar and the questioner is asking about

That always equals 4 except when 
So the restriction is
Answer: a ≠ -3
Answer:
169
Step-by-step explanation:
x−2=13
First find the value of x
x-2+2 = 13+2
x = 15
Now substitute into the expression
x^2 -4x+4
15^2 -4*15+4
225 - 60+4
165+4
169
Answer:
D. Infinitely many solutions
Step-by-step explanation:
The equation simplifies to ...
2h -16 -h = h -16
h -16 = h -16 . . . . . . a "tautology", true for all values of h.
There are infinitely many solutions.
For this particular data set, the median most accurately represents the values present in the data set because most of the values are clustered close to it.
Triangle Area = .5 * base * height
48 = .5 * (x +4) * x
48 = (.5x + 2) * x
48 = .5x^2 + 2x
.5x^2 + 2x -48 = 0
x = 8
base = 12