Answer:
Answers provided below
Step-by-step explanation:
From the simultaneous linear equation, we have the coefficient matrix as;
(3 4 5)
(2 -1 8)
(5 -2 7)
The x-matrix is Dx is given by;
(18 4 5)
(13 -1 8)
(20 -2 7)
Similarly, the y-matrix Dy is given by;
(3 18 5)
(2 13 8)
(5 -20 7)
Also,the z-matrix Dz is given by;
(3 4 18)
(2 -1 13)
(5 -2 -20)
Determinant of the coefficient matrix from online determinant calculator is;
D = 136
Determinant of the x-matrix from online determinant calculator is; Dx = 92
Determinant of the y-matrix from online determinant calculator is; Dy = 696
Determinant of the z-matrix from online determinant calculator is; Dz = 576
From crammers rule;
x = Dx/D = 92/136
y = Dy/D = 696/136
z = Dz/D = 576/136
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You are welcome and if someone else answers, mark me brainliest
Answer:
42
Step-by-step explanation:
Use LCM of 6 and 7 to find a number that is the same:
6 12 18 24 30 36 42
7 14 21 28 35 42
Since 42 shows up in both, the 42th voter gets a button and sticker.
Hope this helped.
Answer:
D-70.81
Step-by-step explanation:
I did the math, this should be correct.
Good luck!
