Answer:
70.15 ft²
Step-by-step explanation:
The figure consists of two adjacent equilateral triangles (all angles are 60 degrees and all outer edges are 9 ft).
If we focus on one of these equilateral triangles, we can get the final area by multiplying the area of that one triangle by 2.
The formula for the area of a triangle is (1/2)(base)(height).  Remembering to multiply this by 2, we get 
area of figure = (base)(height)
                                              √3
                        = (9 ft)(9 ft)(--------) = (81 ft²)(1.732) = 70.15 ft²
                                                2
 
        
             
        
        
        
Answer:
-2
Step-by-step explanation:
Hope this was helpful
 
        
                    
             
        
        
        
Answer:
B 
Step-by-step explanation:
Hope this helps
 
        
             
        
        
        
3x + 4y = 31
2x - 4y = -6
*The +4 and -4 in the center of the equation cancel out because 4-4 = 0*
3x = 31
2x = -6
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*add like terms*
3x + 2x = 5x
31 - 6 = 25
So now you should have this written on your paper ... > 5x = 25
*Divide by 5 on each side*
5x = 25
_      _
5      5
x = 5
        
                    
             
        
        
        
Answer:
Roughly the same as what?
Step-by-step explanation: