<u>Answer:
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Required expression for one-eight of the sum of a number and three is 
<u>Solution:
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Given that unknown value is represented by variable x.
Need to create algebraic expression for One-eight of the sum of a number and three.
Let’s first find one eight of the number that is 1/8th of x = 
Now on adding three we get  

Hence required expression for one-eight of the sum of a number and three is 
 
        
             
        
        
        
(a) SSS (side side side)
 every side on one triangle is correspondingly equal to that of the same side in the other triangle
        
                    
             
        
        
        
Answer:
30 units squared
Step-by-step explanation:
1/2(base)(height)
base=10
height=6
1/2(10)(6) = 5*6 = 30!
 
        
                    
             
        
        
        
Answer:
140
Step-by-step explanation:
you would find the perimeter 8+8+6+6=28, then you multiply it by the height so it would be 28x5=140
 
        
                    
             
        
        
        
Answer:
See explanation. 
Step-by-step explanation:
First put 2x-4 equal to 0 and solve it.
2x-4=0 
2x=4
x=2
Now plug 2 into the polynomial and see if it equals to 0
In case it's not, then it is not a factor of it
2(2)^5 - 4(2)^4 + 2x^2 -2(2) - 4 = 0
So it's indeed a factor of the polynomial.
Hope this helps!