Composing functions means to use the output of the inner function as the input for the outer one. It gets really clear and simple if you explicitly write it out:

Now substitute
:

Now, since
, we know that
gives as output twice the input. In this case, the input is
, so the output will be twice as much:

Note that we also have

Answer:
(14,1)
Step-by-step explanation:
You can see with the LKMJ rectangle, it moves over 7 and up 3.
We can do this for STUV and U is originally (7,-2) but moves up and right to the point (14,1)
Answer:
Quick answer: 1756
Step-by-step explanation:
I'll be commenting on my own answer with an easy to understand explanation on how I got this answer
Answer:
sqrt(10)
Step-by-step explanation:
sqrt(160)/16
sqrt(16)sqrt(10)/sqrt(16)
4sqrt(10)/4
sqrt(10)