Answer:
B. x=3/7   y=22/7
C. because it is not precise
D. you need to replace these values in the above equation
<u>Check Understanding</u>
to find the intersection point:
y=y
-3x-2=x-10
solve, x=2
B. by graphing the 2 lines (equations)
Step-by-step explanation:
 
        
             
        
        
        
Answer: x = 3
Step-by-step explanation: 
x + 9 = 12
x = 12 - 9
x = 3
 
        
                    
             
        
        
        
2 congruent sides would be an isosceles triangle
        
             
        
        
        
Answer:
slope is undefined
Step-by-step explanation:
Calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (1, 2) and (x₂, y₂ ) = (1, - 3)
m =  =
 = 
Since division by zero is undefined then the slope of the line is undefined
 
        
             
        
        
        
If the diameter is 8 centimeters, the radius is 4.  We can use the formula 

 and plug in r=4 and h=13 to get 

, so 

.