Answer:
please see photo attached for detailed analysis.
 
        
             
        
        
        
Answer:
D = 0; one real root
Step-by-step explanation:
Discriminant Formula:

First, arrange the expression or equation in ax^2+bx+c = 0.

Add both sides by 9.

Compare the coefficients so we can substitute in the formula.

Substitute a = 1, b = 6 and c = 9 in the formula.

Since D = 0, the type of solution is one real root.
 
        
             
        
        
        
The wire is about 11.18 m long. This can be found using the Pythagorean theorem.
        
             
        
        
        
Answer:
the answer is 240
Step-by-step explanation:
6x10=60
60x8=480
480÷2=240