Answer:
0.5
Step-by-step explanation:
First find the mean of the data
3+4+4+5 = 16
16/4 = 4
Find the distance of each data to the mean 
4-3 =  1
5-4= 1
4-4 = 0 
4-4 = 0
Now find the mean of those
1+1+0+0 = 2
2/4
MAD = 0.5
 
        
             
        
        
        
Answer:
Step-by-step explanation:
This is a composite function, f(g(x)). This means, working from the inside function to the outside, we will take the function g and plug it in for x in the f function. g(x) = 2x + 4. We will plug that into f(x) and evaluate f(2x+4):
 and I imagine your teacher has you simplify completely. We FOIL and distribute to get
 which, by combining like terms, give us

 
        
             
        
        
        
X = 2 + √42,2- √42
decimal form: 8.480741, -4.480741
sorry if my answer isn't right
        
             
        
        
        
This is 1:25 (C) 
Explanation: