we are given with the data of a parabola with vertex at (2, 2) and directrix at y  = 2.5. the formua should be ax^2 + b x + c = y because of the directrix. 
(x-h)^2 = 4a (y-k)
(x-2)^2 =4a (y-2) 
a is the equidistant distance from focus to vertex and from vertex to directrix that is equal to -0.5
then the  answer is 
(x-2)^2 =-0.5*4 (y-2) 
x2 - 4x + 4 = -2y +4
x2-4x+2y = 0
answer is C
 
        
             
        
        
        
Answer: The first equation is an equation of a parabola. The second equation is an equation of a line.
Explanation:
The first equation is,

In this equation the degree of y is 1 and the degree of x is 2. The degree of both variables are not same. Since the coefficients of y and higher degree of x is positive, therefore it is a graph of an upward parabola.
The second equation is,

In this equation the degree of x is 1 and the degree of y is 1. The degree of both variables are same. Since both variables have same degree which is 1, therefore it is linear equation and it forms a line.
Therefore, the first equation is an equation of a parabola. The second equation is an equation of a line.
 
        
                    
             
        
        
        
Answer:
Option B is correct.
 represents the population of the pack of wolves after t years
Step-by-step explanation:
The exponential growth function is given by;
               ......[1]
where
a represented the initial value
r represents the rate(in decimal)
t represents the time in years
As per the given statement: The population of a pack of wolves is 88. Also, the population is expected to grow at a rate of 2.5% each year.
⇒ a = 88 and  r =2.5% = 0.025.
Substituting these values in equation [1], we have;
 
or
 
Therefore, the population model of the pack of wolves after t years is given by:  
 
 
        
             
        
        
        
72 ounces is 30% of what number ( a much bigger number since 72 is only 30% of it)
Change to math
72 = .3n        (30%= .3 as a decimal)
Divide both sides by .3  (dividing by a number less than 1 will make 72 increase)
Raul will be making 240 ounces of Melon Madness
        
             
        
        
        
Answer:
10 tosses: 3 heads 7 tails
50 tosses: 27 heads 23 tails
100 tosses: 49 heads 51 tails
200 tosses: 118 heads 82 tails