Answer:
The perimeter is approximately 19.
Step-by-step explanation:
Three of the sides are roughly four segments long and two are around three and a half.
4 + 4 + 4 + 3.5 + 3.5 = 19
 
        
                    
             
        
        
        
Answer:
3(a + 5b + 7c) and 2x(2 + 5y + 11z)
Step-by-step explanation:
3a + 15b + 21c
3(a + 5b + 7c)
4x + 10xy + 22xz
2x(2 + 5y + 11z)
 
        
             
        
        
        
Answer:
<h2>The option B and D are the equations.</h2>
Step-by-step explanation:
Let, the total number of students are x.
The number of students having the ticket is  .
.
It is given that the number is 20.
Hence,  .
.
Option B is the equation.
Option D is also the same.
The difference is just, the variable is wriiten in the other side.
 
        
             
        
        
        
Answer:
2.  y = 7/2 x -2
3.   y = 3/4x-1
Step-by-step explanation:
points (0,-2)  (4,12)
slope = (y2-y1)/(x2-x1)
slope = (12--2)/(4-0)
     = (12+2)/4
    = 14/4 = 7/2
the slope is 7/2 and the y intercept is -2
y = mx+b
y = 7/2 x -2
points (0,-1)  (4,2)
slope = (y2-y1)/(x2-x1)
slope = (2--1)/(4-0)
     = (2+1)/4
    = 3/4 
the slope is 3/4 and the y intercept is -1
y = mx+b
y = 3/4x-1
 
        
             
        
        
        
ffn


the sum of their squares is 110, So 
the sum of their cubes is 684, so  
the product of the three integers is 210, so xyz= 210
the sum of any two products (xy+yz+zx) is 107
Now we plug in all the values in the identity

684 - 3(210) = (x+y+z)(110-107)
684 - 630 = (x+y+z)(3)
54 = 3(x+y+z)
Divide by 3 on both sides
18 = x+y+z
the value of the sum of three integers is 18