Heres the answer you’re looking for.
y= -2x-4
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A it is true.
The (i,j) minor of a matrix A is the matrix Aij obtained by deleting row i and column j from A. A determinant of an n×n matrix can be defined as a sum of multiples of determinants of (n−1)×(n−1) sub matrices.
This is done by deleting the row and column which the elements belong and then finding the determinant by considering the remaining elements. Then find the co factor of the elements. It is done by multiplying the minor of the element with -1i+j. If Mij is the minor, then co factor,
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Each element in a square matrix has its own minor. The minor is the value of the determinant of the matrix that results from crossing out the row and column of the element .
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Answer:
Given:
x+y=5, and
x=3
explanation:
Substituting the value of x in the given equation, we get
3+y=5
⇒y=2Step-by-step
Answer:
A = 90
Step-by-step explanation:
We need to find the length of the base
Let EF be the base
length = change in x (since the y's are the same value)
= (9--9) = (9+9) = 18
Now we need to find the height (change in y values)
-7 --2
-7 +2 = -5
But the value is positive because we are finding the distance
height is 5 units
A = bh
A = 18*5
A = 90