Answer:
y = -3
Step-by-step explanation:
the length from directrix to vertex is equal to the length from focus to the vertex.
 
        
                    
             
        
        
        
It will be 5 years and 5 months.
        
                    
             
        
        
        
Answer:
Mean or Expected Value:
μ
=
∑
x
i
n
X
 
x
P
(
x
)
Standard Deviation:
σ
=
√
∑
x
i
n
X
 
(
x
−
μ
)
2
P
(
x
)
Step-by-step explanation:
 
        
             
        
        
        
this is kinda easy and im gonna assume that the 4 is a exponent cuz f(2)=2(3)^4 then f=81