Hey! 
Weight of small box = 5 lb. x no. of small boxes total weight = 5*x 
Weight of Large boxes = 12 lb. y no. of large boxes total weight = 12*y 
Total weight = 5x + 12y. 
Since total weight carrying capacity of shelf is 80, thus the inequality becomes: 
5x + 12y Less than or equal to 80. 
(a) satisfies the inequality. 
(b) satisfies the inequality. 
Hope my answer helps!
 
        
             
        
        
        
Hi again 
x² - 2x - 8 
Factor 
= (x + 2)(x -4) 
Answer : A is the correct option. 
If you wanna check if A is the right answer, I will solve it for you and it will you give you the exact answer which will be x² - 2x - 8
(x+2)(x-4) 
Distribute 
(x)(x) + (x)(-4)+(2)(x)+(2)(-4)
= x² - 4x + 2x - 8 
= x² - 2x - 8 
Here it is, we find the exam answer. 
Thus, (x+2)(x-4) is the reciprocal of x² -2x - 8 
I hope that's help ! 
        
             
        
        
        
Answer:

Step-by-step explanation:
It is given that the length of triangle base is 26 that is BC=26. 
A line, which is parallel to the base divides the triangle into two equal area parts.
Therefore, from the given information,  .
.
Now, since it is given that A line, which is parallel to the base divides the triangle into two equal area parts, thus

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The answer would be: X=26
        
                    
             
        
        
        
Answer:
16 cms if each side is 4. cc