you could use this equation to help you solve it;
x + (x + 42) = 138
the first step is to combine like terms;
2x = 138 -42
2x = 96
X = 96/2
X = 48
we already solved for x now substitute it in the equation I gave you.
48 + (48 + 42) = 138
48 + 90 = 138
hope it helped...if you have any concerns just let me know:)
Answer:
3. Add 11, then multiply by 3
4. Subtract 43, then multiply by 9
Step-by-step explanation:
Does that make sense?
Answer:
The inverse function is 
Step-by-step explanation:
The given function is
.
This function is only invertible on the interval,
.
To find the inverse on this interval, we interchange
and
.

We now make
the subject to get,



But the given interval is
, This implies that,
.

Answer:
D. 9
Step-by-step explanation:
9 is odd, however it is a composite number. That is the opposite of what the conditional is saying.