Answer:
<h2>-11y - 4.1x</h2>
Step-by-step explanation:

 
        
                    
             
        
        
        
Answer:
x=-8
Step-by-step explanation:

on squaring both sides

either x-2=0  or  x+8=0
either x=2 or x=-8
Putting x=2 in original equation, we get
 
7=7 hence, it is not an extraneous solution
Putting x=-8 in original equation

i.e. 3=-3
Hence, x=-8 is an extraneous solution (since it doesn't satisfy the original equation)
 
        
                    
             
        
        
        
Answer:
x = 1
Step-by-step explanation:
It is given that,
∠A and ∠B are vertical angles. 
∠A = (5x – 4) and ∠B = (2x – 1)
We need to find the value of x.
We know that, the vertical angles are equal. So,
∠A=∠B
(5x – 4)=(2x – 1)
Taking like terms together,
5x-2x = 4-1
3x=3
x = 1
So, the value of x is equal to 1.
 
        
             
        
        
        
You can solve using the pythagorean theorem which is
a^2+b^2=c^2 where a and b are the legs and c is the hypotenuse in a right triangle.
12^2+x^2=24^2
144+x^2=576
x^2=432
x =20.78 (approximately)
        
                    
             
        
        
        
Answer:
-0.574
Step-by-step explanation:
Subtract the two numbers to get the solution