ABC ≅ QPR because it is just a mirror image to ABC.
hope my answer helped out! Have a nice day Aaronbenjakedor!
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
We use the chord formula, (sorry, I forgot its name) to get 3*12=x*x, so x^2=36, x=6. 
We do the Same thing on the other side, we get 6*6=6y, which means that x=y=6. 
 
        
             
        
        
        
Answer:
B represents a function.
Step-by-step explanation:
Recall these characteristics of a "function:"
Only one y-value can be associated with each x-value.  
Thus, A could not represent a function because there are two points with x = 1 and two different y-values:  (1, 1) and (1, -2).  
B represents a function because for each input (x-value) there is one and only one y-value associated.
C not a function:  (2, 3) and (2, -3) have two different y-values associated with one x-value (2).
D not a function:  (-3, 4) and (-3, -4) (see A and C, above)
 
        
             
        
        
        
Answer:
3/5
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Let h be the cylinders height and r the radius. 
-The volume of a cylinder is calculated as:

-Since the cone is within the cylinder, it has the same radius as the cylinder.
-Let  be the height of the cone.
be the height of the cone.
-The area of a cone is calculated as;

The volume of the  solid section of the cylinder is calculated by subtracting the cone's volume from the cylinders:

Hence, the approximate area of the solid portion is 