Answer:
D
Step-by-step explanation:
The solution to a system of equations given graphically is at the point of intersection of the 2 lines.
The x- coordinate of the point of intersection is approximately 5.5
Step-by-step explanation:
the solution is in the picture
Answer:
The answer is Medium size
Step-by-step explanation:
The equation is simple
14.20 divided by 20 = 0.71
The y intercept is (0,-6) and the x intercept is (-8,0)
Answer:
The (i,j) cofactor Cij of A is defined to be
Cij=(−1)ijdet(Mij),
where Mij is the (i,j) minor matrix obtained from A removing the i-th row and j-th column.
Then consider the n×n matrix C=(Cij), and define the n×n matrix Adj(A)=CT.
The matrix Adj(A) is called the adjoint matrix of A.
When A is invertible, then its inverse can be obtained by the formula
Step-by-step explanation: