Answer:
$21,860
Step-by-step explanation:
 
        
             
        
        
        
Answer: 20.5
Step-by-step explanation:
From the measure of the length of the sides of the triangle, 9, 40 and 41 we can infer that the triangle is a right angled triangle. 9-40-41 is a Pythagorean triplet.
In a right angled triangle, the circumradius is half the hypotenuse.
In the given triangle, the hypotenuse = 41.
Therefore, the circumradius is  41÷2= 20.5 units.
 
        
             
        
        
        
Answer:
x = 0
Step-by-step explanation:
→ Expand out the brackets
6 - 18x + 4x - 6  = 0
→ Collect all the like terms
-12x = 0
→ Now solve
x = 0
 
        
                    
             
        
        
        
Answer:
x=4, y=2
Step-by-step explanation:
2x - y = 6  
x + y = 6
Add these together to eliminate y
2x - y = 6  
x + y = 6
-----------------
3x = 12
Divide by 3
3x/3 = 12/3
x=4
But we still need y
x+y =6
4+y =6
Subtract 4 from each side
4+y-4 = 6-4
y=2
 
        
             
        
        
        
7w + 4h + 10w + 15h - 2w - 2h 
= 15w + 17h