Answer:
D
Step-by-step explanation:
2y=10x
Divide both sides by 2.
y=5x
Now substitute this into the second equation.
 
        
                    
             
        
        
        
The correct answer is A, x-4
        
             
        
        
        
Answer:
Step-by-step explanation:
<u>Use properties of exponents:</u>
<u>Simplify the given expression:</u>
- 3⁴⋅x⋅(3/x²)⁻² = 
- 3⁴·x·(3x⁻²)⁻² = 
- 3⁴·x·(3⁻²)(x⁻²ˣ⁻²) =
- 3⁴⁻²·x¹⁺4 =
- 3²·x⁵ =
- 9x⁵
 
        
             
        
        
        
Answer:
Option 3 - 
Step-by-step explanation:
Given : Perpendicular to the line  ; containing the point (4,4).
; containing the point (4,4).
To Find : An equation for the line with the given properties ?
Solution : 
We know that, 
When two lines are perpendicular then slope of one equation is negative reciprocal of another equation.
Slope of the equation 
Converting into slope form  ,
,
Where m is the slope.


The slope of the equation is 
The slope of the perpendicular equation is 
The required slope is 

The required equation is 
Substitute point (x,y)=(4,4)
 
 
 
Substitute back in equation,

Therefore, The required equation for the line is 
So, Option 3 is correct.