Answer:

Step-by-step explanation:
We have been given an equation  . We are asked to find the zeros of equation by factoring and then find the line of symmetry of the parabola.
. We are asked to find the zeros of equation by factoring and then find the line of symmetry of the parabola.
Let us factor our given equation as:

Dividing both sides by 2:

Splitting the middle term:




Using zero product property:



Therefore, the zeros of the given equation are  .
.
We know that the line of symmetry of a parabola is equal to the x-coordinate of vertex of parabola.
We also know that x-coordinate of vertex of parabola is equal to the average of zeros. So x-coordinate of vertex of parabola would be:

Therefore, the equation  represents the line of symmetry of the given parabola.
 represents the line of symmetry of the given parabola.
 
        
             
        
        
        
Answer:
C
Step-by-step explanation:
First we find the z-score.
z = (x - μ) / σ
z = (520 - 500) / 60
z = 0.33
Using a calculator or z-score table:
P(z < 0.33) = 0.6293
The probability is approximately 63%.  Answer C
 
        
             
        
        
        
Cannot reduce, it is already in simplest form. You can convert it to a decimal though, 0.671875 
        
                    
             
        
        
        
Answer:
hailey played the game longer (1/3 hour).
Step-by-step explanation:
You are deciding which is greater: 1/6 or 1/3.in this case, a smaller denominator (such as 3) produces a greater value.1/3 has a smaller denom. than does 1/6, so 1/3 is greater than 1/6.hailey played the game longer (1/3 hour).
 
        
             
        
        
        
All angles are the same in congruent triangle.