Y - (-5) = -7
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Simplify
y + 5 = -7
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Subtract 5 from each side
y + 5 - 5 = -7 - 5
y = -12
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y = -12 is your answer
        
                    
             
        
        
        
Answer:
60,000
Step-by-step explanation:
Jane-2000
Peter-ratio of 5=25000
Marta-ratio of 7=35000
25000+35000
60000
 
        
                    
             
        
        
        
Answer:
146.41
Step-by-step explanation:
third order determinant = determinant of 3×3 matrix A
given ∣A∣=11
det (cofactor matrix of A) =set (transpare of cofactor amtrix of A) (transpare does not change the det)
=det(adjacent of A)
{det (cofactor matrix of A)}  ^2  = {det (adjacent of A)}
^2
  
(Using for an n×n det (cofactor matrix of A)=det (A)^n−1
)
we get
det (cofactor matrix of A)^2  = {det(A)  ^3−1
}^2
  
=(11)^2×2  = 11^4
  =146.41
 
        
             
        
        
        
Since ABCD is a parallelogram, the opposite sides will be parallel and equal,

Consider that AC acts as a transversal to the parallel lines AB and CD, so we can write,

So by the ASA criteria, the triangle AED is congruent to the triangle CEB,
Then the corresponding parts of the triangles will be equal,

Hence Proved.
 
        
             
        
        
        
Answer:
Step-by-step explanation:
Perimeter of a triangle equals side 1 plus side 2 plus side 2
            P = s1 + s2 + s3                 side 1 = side 2 =  x
                                                      x/side 3 = 5 / 3
                                                      x  = (5/3) side 3
                                                      x (3/5)  = side 3
                                                   
                                                      perimeter = 65    slove for x
           65  = x + x + 3x/5
          325  = 5x + 5x + 3x
          325  = 13X
           25   = x    equal side 1 and side 2   
           side 3 = 25(3/5)  = 15