Answer:
it should be the 3ird one
Answer: 
Step-by-step explanation:

Begin by multiplying parentheses.



Subtract 


Add 3


Combine like terms;

Divide by 10

Simplify;

Answer:
( 1 , 6 )
Step-by-step explanation:
sory if it is wrong
Answer:
7
Step-by-step explanation:
10=2(7)-4
10=14-4
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