4a-8=28
add 8 to both sides to start to isolate the variable (a)
-8+8 cancels each other out
28+8=36
4a=36
to completely isolate the variable divide both sides by 4
4a÷4=a
36÷4=9
a=9
Answer:
Step-by-step explanation:
<u>Composite Function
</u>
Given f(x) and h(x) real functions, the composite function named 
is defined as:
It can be found by substituting h into f.
We are given the functions:
It's required to find 
As defined above:
Thus:
Find h(2):
h(2)=0
Now:
Answer:
The equivalent expressions are;
9x + 9
and
9(x + 1)
Step-by-step explanation:
Mathematically, we should understand that an equilateral triangle has all of its sides equal
So if one side is 3x+ 3, the other sides too measures same
Therefore, the length of the rope represents the perimeter of the triangle
This is obtainable by adding all the side lengths together
This will be;
3x + 3 + 3x + 3 + 3x + 3 = 9x + 9
This is also same as 9(x + 1)
Answer:
look at my question
Step-by-step explanation:
