Answer:
c
Step-by-step explanation:
A perfect square trinomial is always in the form 
(a+b)(a+b)= 
ie. (x+4)(x+4)= 
 
        
             
        
        
        
The slope is 3.5, also known as 3 1/2.
        
             
        
        
        
First we have to find a common denominator 
8×3=21
7/8×3=21/24
2/3×8=16/24
21-16=5
answer is 5/24
        
             
        
        
        
Answer:
528 cm²
Step-by-step explanation:
First I would calculate the area of the side rectangles:
20 x 9 = 180 cm²
There are two identical rectangles on both sides so i would x2
180 x 2 = 360 cm²
The area of the middle rectangle:
6 x 20 = 120 cm²
The area of the triangles:
Area of a triangle = (Base x Height)/2
8 x 6 = 48
48 ÷ 2 = 24
There are two identical triangles on the bottom and the top so x2
24 x 2 = 48
Now add all the values up:
360 + 120 + 48 = 528 cm²
I hope this helps!
 
        
             
        
        
        
Answer:
-8 and 9
Step-by-step explanation:
-8 x 9  = -72
and  -8 + 9 = 1