Answer:
P(X<1) = .216         P(X</=1) = .648
Step-by-step explanation:
its right
 
        
             
        
        
        
Answer:
p = -2 ±sqrt( 5)
Step-by-step explanation:
 p^2 + 4p = 1
Take the coefficient of p
4
Divide by 2
4/2 =2
Square it
2^2 = 4
Add it to each side
 p^2 + 4p+4 = 1+4
(p+2) ^2 = 5
Take the square root of each side
sqrt((p+2) ^2) =±sqrt( 5)
p+2 = ±sqrt( 5)
Subtract 2 from each side
p+2-2 = -2 ±sqrt( 5)
p = -2 ±sqrt( 5)
 
        
             
        
        
        
Answer:
B = (zx/2)+ (qx/2)
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
-36
Step-by-step explanation:
-3 ×12=--36
 
        
                    
             
        
        
        
Answer:
32. ∛((x-7)/4) = f^(-1)(x)
33. -10x - 9 
Step-by-step explanation:
32. We want to switch f(x) and x, and then solve for f(x) to get the inverse. 
x = 4f(x)³ + 7
subtract 7 from both sides
x -7 = 4f(x)³
divide both sides by 4
(x-7)/4 = f(x)³
cube root both sides
∛((x-7)/4) = f(x)
make f(x) f^(-1)(x) because this is now the inverse
∛((x-7)/4) = f^(-1)(x)
the second answer is correct
33. for composition, we can treat (f · g) (x) as attached picture (content filter!), so we plug g(x) into f(x). This results in
2(-5x-7) + 5
expand
-10x - 14 + 5
add
-10x - 9 
the second answer is correct