Answer:
The last one..Number 4
Step-by-step explanation:
When u add the two sides it's supposed to be larger than the bigger side 
so 13+20 is smaller than 34 
 
        
             
        
        
        
(-4,-5)(-4,6)(3,8) 
all y signs become opposite!:)
        
                    
             
        
        
        
Answer:
56 square units
Step-by-step explanation:
The formula for the area of a triangle of base b and height h is:
A = (1/2)(b)(h)
Here, that area is   A = (1/2)(8)(14) = 56 square units
 
        
             
        
        
        
The expression for the perimeter of the rectangle is 2(11c - 11d)
Perimeter of a rectangle = 2(length + width) 
Length = 3c - 9d 
Length = 3c - 9d Width = 8c - 2d
The expression for the perimeter can be expressed thus :
2(3c - 9d + 8c - 2d) 
Collect like terms :
2(3c + 8c - 9d - 2d)
2(11c - 11d)
Hence, the expression for the perimeter of the rectangle is 2(11c - 11d)
Learn more : brainly.com/question/2142493?referrer=searchResults
 
        
                    
             
        
        
        
First, you subtract 8 by both sides ( 8-8/ 20-8) so now your equation is 3n=12. Next, you multiply 3n by 3, and get 0, and 12 multiplied by 3 and the answer is 36! Hope this helped.