Answer:
b
Step-by-step explanation:
 
        
             
        
        
        
Switch where the x and y are, then solve for y. f(x) = y. 
x = 3y^2 + 6
x-6 = 3y^2
(x-6)/3 = y^2
f^-1(x) = y = sqrt((x-6)/3)
        
             
        
        
        
-x^2 + 9 - 3x^2 - 11x + 4
-4x^2 - 11x + 13
        
             
        
        
        
Answer: ratio of her SAVINGS to her EXPENDITURE=1:7
Step-by-step explanation:
Neelam's daily income = ₹ 800
Neelam's daily savings amount = ₹100
 Therefore  her expenditure will be Daily income - Daily savings
= ₹ 800- ₹ 100= ₹ 700
  ratio of her SAVINGS to her EXPENDITURE
= 100: 700
=1:7
 
        
             
        
        
        
Answer:
77 
Step-by-step explanation:
it is the thing ok