Answer:
12 cm L=6cm W= 2 A=L*W 6*2=12cm
Step-by-step explanation:
Well just multiply 891 with 1.6
To get 1425.6mph
Answer: 11+5=16
Step-by-step explanation: 14, 15, 16, 17 and 18
Answer:
det(A)=-det(B)
Step-by-step explanation:
We have two matrices A, and B.
Matrix B is obtained by swapping rows 1 and 3 of matrix A.
Whenever we swap rows in matrices, the determinants does not change but the sign changes.
Therefore
det(A)=-det(B)
Also no two rows of of both matrices are the same, therefore
det(A)≠0, and det(B)≠0
