Answers:
- x = 4
 - AB = 36
 - BC = 36
 - AC = 36
 
All three sides are 36 units long.
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Explanation:
Triangle ABC is equilateral, so all three sides are the same length.
Pick any two of those sides, set them equal to each other, and solve for x
AB = BC
8x+4 = 11x-8
8x-11x = -8-4
-3x = -12
x = -12/(-3)
x = 4
Use this x value to find each side. We should get the same value (if not, then an error occurred in solving for x).
- AB = 8x+4 = 8*4+4 = 32+4 = 36
 - BC = 11x-8 = 11*4-8 = 44-8 = 36
 - AC = 9x = 9*4 = 36 
 
We get the same value for the three side lengths, so this confirms we have the correct x value.
 
        
             
        
        
        
Answer:
23x+y=-16
Step-by-step explanation:
 
        
             
        
        
        
Answer:
√254 feet
Step-by-step explanation:
This is basically a triangle, with a height of 2, and hypotenuse of 16. 
Using the Pythagorean theorem (a^2+b^2=h^2) we can find the other side.  
2^2+b^2=16^2
4+b^2=256
b^2=254
b=√254
 
        
             
        
        
        
Answer:6 pounds you need to divide 3 by .5 and you will get 5
Step-by-step explanation: