9(-6x-2)-7(-10x-2)
Simplify, by distributing the 9 and the -7
-54x-18+70x+14
Combine like terms
16x-4 is the simplified expression
Hope this helped!
        
             
        
        
        
Answer:
Line A
Step-by-step explanation:
It has a lower slope of 3/4
 
        
             
        
        
        
Let us say that h is the height of the guardrail.
Therefore the inequality equation that we can generate from this scenario is:
| h – 106 | = ± 7
 
There are two ways to solve this, either the equation is
positive or negative.
When the equation is positive, therefore:
| h – 106 | = 7
h = 7 + 106 = 113 cm
 
When the equation is negative, therefore:
| h – 106 | = - 7
h = -7 + 106 = 99 cm
 
So the height must be 99 cm to 113 cm
 
        
             
        
        
        
Conjugate of 9-5i is 9+5i
product of those two: (9-5i)*(9+5i) = 
