Answer:
The inverse is ±sqrt((x-1))/ 4
Step-by-step explanation:
y = 16x^2 + 1
To find the inverse, exchange x and y
x = 16 y^2 +1 
Then solve for y
Subtract 1
x-1 = 16 y^2
Divide by 16
(x-1)/16 = y^2
Take the square root of each side
±sqrt((x-1)/16) = sqrt(y^2)
±sqrt((x-1))/ sqrt(16) = y
±sqrt((x-1))/ 4 = y
The inverse is ±sqrt((x-1))/ 4
 
        
             
        
        
        
I believe the answer is C. It is the only one that makes sense
        
             
        
        
        
Answer:
b
B -4+(-9
Step-by-step explanation:
because plus a negative number is just like subtracting i belive
 
        
                    
             
        
        
        
Z = 114 + 2p
p = 46
Plug in 46 for 'p' in the first equation.
z = 114 + 2p
z = 114 + 2(46)
Multiply:
z = 114 + 92
Add:
z = 206
So the Zigzag river is 206 miles long.
        
                    
             
        
        
        
Answer:
15-x
Step-by-step explanation:
x subtracted from 15 - key word is subtracted from
that means flip it when it is written so it is 15-x