Collect the like terms
9x-5x=20
4x=20 divide both sided by 4
x=5
        
                    
             
        
        
        
Step-by-step explanation:
The root of an equation is when x=0.
We need to rewrite this as 3x²-4x+10=0.
The quadratic formula is 
(-b+or-sqrt(b²-4ac))/2a
so 4+or-sqrt(16-120)/2a
since the sqrt can no be negative this answer will have imaginary numbers.
(4+2i sqrt(26))6 and (4-2i sqrt(26))6
simplified is 
x=(2+i sqrt(26))/3 and x=(2-i sqrt(26))/3
 
        
             
        
        
        
Answer:
30 dogs
Step-by-step explanation:
There are 40 cats, and 25% more cats than dogs. If you find 25% of 40, you get 10. That means there are 10 more cats than dogs. 40-10= 30. 
30 dogs.
 
        
             
        
        
        
Answer:
6(3t+2)
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
Erase the dot points you already have. We are supposed to substitute those values in the right side of problem 1 into the function as x.
For example if x=-4

If x=-2

If x=0



So our point should be 
-4,9
-2,7
0,5
-2,3
-4,1.
The range is all possible y values in a function. Since this is discrete and we are given the domain, our range will just be the y value of the points you graphed.
(9,7,5,3,1)