Answer:


Domain: All real numbers
![Range = [-1,1]](https://tex.z-dn.net/?f=Range%20%3D%20%5B-1%2C1%5D)
Step-by-step explanation:
Given
The attached graph
Solving (a): f(0)
On the attached graph
when 
So:

Solving (b): f(pi)
On the attached graph
when 
So:

Solving (c): Domain
There is no restriction on x.
Hence, the domain is the set of all real numbers
Solving (d): Range
In the attached graph


So, the range is:
![Range = [-1,1]](https://tex.z-dn.net/?f=Range%20%3D%20%5B-1%2C1%5D)
Answer: I am pretty sure you are correct from my standpoint
Step-by-step explanation:
If you look closely he is pretty close to the answer or it is the answer or this is just answer on my point or if its wrong try b
Answer:
4(x + 5) = 2(10 / x) solved = - 20
Step-by-step explanation:
this may not be correct but i really think im right
Well the hidden question is that how much time did it take for them to change including the break but I'm not sure what the broad question is.
Answer:
10d - 3x
Step-by-step explanation:
Distribute the 4: 12d - 8x
Distribute the -1: -2d + 5x
Add like terms: 10d - 3x