Answer:
3x²
Step-by-step explanation:
 =
 = 
 =
 = 

 
        
             
        
        
        
Answer:
   40.5°
Step-by-step explanation:
The relevant trig relation is ...
   Tan = Opposite/Adjacent
In this triangle, that means ...
   tan(x°) = 4.7/5.5
The angle is found using the inverse function:
   x° = arctan(4.7/5.5) ≈ 40.5°
 
        
             
        
        
        
Answer:
84%
Step-by-step explanation:
84%
63 divided by 75 is 0.84. 0.84 is also 84% so the answer is 84%.
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
The domain is the span of x-values covered by the graph. 
From the graph, we can see that the x-values covered by the graph is all values to the left of zero including zero. 
Therefore, the domain is all x-values less than or equal to 0: 

Further notes: 
In interval notation, this is: 
![(-\infty,0]](https://tex.z-dn.net/?f=%28-%5Cinfty%2C0%5D)
 
        
                    
             
        
        
        
A histogram is like a bar graph without gaps between the rectangles. So you first create a bar graph with your labels and title, then you get rid of the gaps between the rectangles.