Answer:
4
Step-by-step explanation:
 Equation 1
 Equation 1
 Equation 2
 Equation 2
What is the value of  where each variable represents a real number?
 where each variable represents a real number?
Let's expand equation 1:


Simplify each term if can:

See if we can factor a little to get some of the left hand side of equation 2:
The first two terms have  and if I factored
 and if I factored  from first two terms I would have
 from first two terms I would have  which is the first term of left hand side of equation 2.
 which is the first term of left hand side of equation 2.
So let's see what happens if we gather the terms together that have the same variable squared together.

Factor the variable squared terms out of each binomial pairing:

Replace the sum of those first three terms with what it equals which is 6 from the equation 2:

Combine like terms:

Subtract 6 on both sides:

Divide both sides by 3:

 
        
             
        
        
        
Answer: the x intercept is -5  and the  y intercept is 25. 
Step-by-step explanation:
f(x) = -x^2 + 25   
The x intercept is when y is zero and the  y intercept is when x is zero.So input zero into the  expression and solve for y. 
-1(0)^2 + 25 = 25 so the y intercept is 25. 
 0=-x^2 +25   
  -25      -25 
-25 = -x^2 
x^2 = 25 
x = -5   or 5 
  
 
        
             
        
        
        
Answer:
Approximately Normal
Step-by-step explanation:
Since the population is normally distributed, the sampling distribution of the sample mean will also be normally distributed, even when the sample size is small.
 
        
             
        
        
        
Percentage of working employees is 55.56
workings:5/9 x100