Answer:
a) The discriminant of the equation =  - 44 
b)The nature of the roots will be imaginary. 
c) 
Step-by-step explanation:
Here, the given expression is 
or, 
Now the discriminant (D) of a quadratic equation 
D = 
Hence, the discriminant of the equation =  - 44
As D< 0, so the roots will be imaginary. 
Now,by quadratic formula : 
So, here 
So, either 
or, 
 
        
             
        
        
        
Perpendicular lines have slopes that are negative reciprocals. example: line a has a slope of 2/3, line b has a slope if -3/2 if they are perpendicular.
        
             
        
        
        
Here, you would complete it with the Pythagorean Theorem. 
So, A^2 + B^2 = C^2 
So 14^2 + B^2 = 14^2
This equals = B = 11.49
        
                    
             
        
        
        
Answer:
x=59/5 or x=11.8 depends on which one you want to do both are true
Step-by-step explanation:
Start with what you are given 
angle 4= 5x+6 and angle 3=65 because lines m and n are both parallel angle4=angle3 in other words 5x+6=65
what you want to do is get x by itself. 
1. Subtract 6 from both sides
5x+6-6=65-6
5x=59
2. Divide both sides by 5
5x/5=59/5
x=59/5
3. Check to see if you can simplify the fraction and if you teacher wants it in decimals or exact fraction. 
x=59/5 or x=11.8 they are the same just ones a decimal the other is left as a fraction
 
        
             
        
        
        
Answer: 40%
Step-by-step explanation:
If you divide 8400 by 14000. You will see that $8400 is 60% (.60 in the calculator) you need to subtract that from 100 to find the discount. 100-60= 40