Answer:-66
Step-by-step explanation:
The answer is -5x + 4y = -20
Answer:19
Step-by-step explanation:
4^2=16
6/2=3
16+3=19
(i) Use the formula for the determinant of a 2×2 matrix.
(ii) The adjugate matrix is the transpose of the cofactor matrix of A. (These days, the "adjoint" of a matrix X is more commonly used to refer to the conjugate transpose of X, which is not the same.)
The cofactor of the (i, j)-th entry of A is the determinant of the matrix you get after deleting the i-th row and j-th column of A, multiplied by . If C is the cofactor matrix of A, then
Then the adjugate of A is the transpose of C,
(iii) The inverse of A is equal to 1/det(A) times the adjugate:
(iv) The system of equations translates to the matrix equation
Multiplying both sides on the left by the inverse of A gives
Answer:
D) 125°
Step-by-step explanation:
FGHJ is congruent to RSTV
So, m∠F = m∠R
∠R = 125
∠F = 125