Answer:
Function A is non-linear and Function B is linear.
Step-by-step explanation:
Linear function:
Has the following format:
y = mx + b
In which m is the slope and b is the y-intercept.
In a linear function, when x changes by 1, y will always changes by the same amount.
Function A:
When x changes by 1, y can change by various amounts. So function A is non-linear.
Function B:
y = -x + 5
In the format of a linear function, so linear
 
        
             
        
        
        
1. The area of the photograph is:
  A=LxW 
 A is the area of the photograph (A=54 in²).
 L is the lenght of the photograph (L=12-4x).
 W is the widht of the photograph (W=12-2x) 
 2. When you substitute these values into the formula A=LxW, you obtain: 
 A=LxW
 54=(12-4x)(12-2x) 
 3. When you apply the distributive property, you have: 
 54=144-24x-48x+8x²
 8x²-72x+144-54=0 
 4. Finally, you obtain a quadratic equation for the area of the photo: 
 8x²-72x+90=0 
 5. Therefore, the answer is:   
8x²-72x+90=0
 
        
        
        
We can see the sequence goes by decreasing 9 on each number
so the numbers are 
2, -7, -16, -25, -34, -43, -52, -61, -70
so adding all these numbers we get
2-7-16-25-34-43-52-61-70
= -306
hope this helped
        
             
        
        
        
Answer:
x= - AB-4/5 and No Solution
False for all xER
Step-by-step explanation:
 
        
             
        
        
        
Answer: 10 inches × 14 inches 
Work:
length = x inches
width = x - 4 inches
perimeter = 2(l+w)
48 = 2[(x)+(x - 4)]
48 = 2(2x - 4)
24 = 2x - 4
28 = 2x
14 = x
length = x inches = 14 inches
width = x - 4 inches = 14 - 4 = 10 inches