Bfh ju yrdfhjjgfjkiytdcbnkl
        
             
        
        
        
Answer:a is the answer I think..........................
        
                    
             
        
        
        
The answers X2 plus 4X -21This is because it’s possible
        
             
        
        
        
Answer:
 

Step-by-step explanation:
Let's call x the length of each piece in yards
If the ribbon is cut into 8 equal pieces then the sum of the pieces is:

Then:

Now we solve the equation for x

Divide both sides of equality by 8


So the length of each piece is  of a yard.
 of a yard. 
This is: 1.125 yards
 
        
             
        
        
        
Answer:
   D.)  because it cannot be expressed as a ratio of integers
Step-by-step explanation:
The root of any integer that is not a perfect square is irrational. 5 is not a perfect square, so is irrational—it cannot be expressed as the ratio of integers.
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<em>Proof</em>
Suppose √5 = p/q, where p and q are mutually prime. Then p² = 5q². 
If p is even, then q² must be even. We know that √2 is irrational, so the only way for q² to be even is for q to be even—contradicting our requirement on p and q.
If p is odd, then both p² and q² will be odd. We can say p = 2n+1, and q = 2m+1, so we have ...
   p² = 5q²
   (2n+1)² = 5(2m+1)²
   4n² +4n +1 = 20m² +20m +5
   4n² +4n = 4(4m² +4m +1)
   n(n+1) = (2m+1)²
The expression on the left will be even for any integer n; the expression on the right will be odd for any integer m. This equation cannot be satisfied for any integers m and n, so contradicting our assumption √5 = p/q.
We have shown using "proof by contradiction" that √5 cannot be the ratio of integers.