We know that the angles of a straight line equal 180 degrees and also the sum of all angles in a triangle equals 180 degrees, therefore you can determine x = 38
Answer:
Step-by-step explanation:
25 tickets = $2705
1 ticket = 
= $108.20
8 tickets= 108.20×8
=$865.60
Answer:
The answer would have came out of 3.84615384615
Then round up the answer to 3.85. So the unit price is $3.85
Answer:
32
Step-by-step explanation:
x+102=4x+6
102=3x+6
96=3x
32=x
Hope this helps!!!
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
