L=2W+2
W=(L-2)/2
A=LW, using W from above makes this
A=L(L-2)/2
2A=L^2-2L
L^2-2L-2A=0, given A=84
L^2-2L-168=0
(L-14)(L+12)=0, since L>0
L=14 
The length of the rug is 14 ft
(W=(L-2)/2=6 ft)
 
        
             
        
        
        
Answer:
16 = 1 x 16, 2 x 8, or 4 x 4. Factors of 16: 1, 2, 4, 8, 16. Prime factorization: 16 = 2 x 2 x 2 x 2, 
Step-by-step explanation:
which can also be written 16 = 2⁴. Since √16 = 4, a whole number, 16 is a perfect square
if this helped please give me brainliest
 
        
                    
             
        
        
        
Answer:
12^2 + 15^2 = 18^2
Step-by-step explanation:
If we have 3 sides of a triangle we can use the Pythagorean theorem to determine if the triangle is a right triangle
a^2 + b^2 = c^2
12^2 + 15^2 = 18^2
If this is true, then the triangle is a right triangle
 
        
             
        
        
        
<2
Step-by-step explanation:
 that the answer. because it below par