Answer: 
Step-by-step explanation:
Perimeter is simply length + width. They gave us that the length is 2 feet plus 2 times the width:

Subtract 2 from both sides to get 23 = 2w + w
Combine like terms to get 23 = 3w
Divide by 3 to get  feet
 feet
 
        
             
        
        
        
Answer:

Step-by-step explanation:
Factorise in order to reveal factors.

 
        
             
        
        
        
Answer:
its 3rd graph, the one with (-1,0) point
 
        
                    
             
        
        
        
The pattern is subtracting each number by 5
        
                    
             
        
        
        
I believe it's<span> 8cos(x)⁸ - 16cos(x)⁶ + 10cos(x)⁴ - 2cos(x)².
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Alternately, you can write [</span><span><span>1 / (tan(2x) - cot(2x))] + [cos(8x) / (tan(2x) - cot(2x))].
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