X^2-4x-5=0
according viet’s theorem
the roots are 5 and -1
        
             
        
        
        
8: slope is 1/2 and y intercept is 0
9: slope is 7/4 and y-intercept is 0
        
             
        
        
        
In order to add these fractions we have to make a common denominator.
1/5 can turn into 2/10 Its the same thing. And its easier to solve with. 
now lets multiply. 
 ×
 × 
Now we add across 
2 + 1 = 3 
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10 + 10 = 10 ( When adding fractions like these the denominator stays the same)
So your answer is...

Good Luck! :)
 
        
             
        
        
        
Answer:
B. (5,12,13)
Step-by-step explanation:
The only answer with two side lengths that are greater than the largest side length.