Answer:
(-1, 7, 2)
Step-by-step explanation:
we suppose that ax + by + cz = d for the matrix
D = det [ 0 4 7] = 100
-6 0 -2
1 2 8
Dx= det [ 14 4 7] = - 100
10 0 -2
-3 2 8
Dy= det [ 0 14 7] = 700
-6 10 -2
1 -3 8
Dz = det [ 0 4 14] = 200
-6 0 10
1 2 -3
So the solution is:
x = Dx/D = -1, y = Dy/D= 7, z =Dz/D = 2
(-1, 7, 2)
have a good day!
9514 1404 393
Answer:
- -6x
- variable: x
- coefficient: -6
Step-by-step explanation:
The first term is the one on the far left, before the + sign. It is -6x.
There is a variable (x) in this term, so it is a variable term. The variable is x.
The coefficient is the constant that multiplies the x, The coefficient is -6.
Answer:
7.5
Step-by-step explanation:
3x+4y=36y=-1/2+8=
Answer:
Step-by-step explanation:
Triangle equilateral has 3 sides
3(3x+2) = 60
9x+6 =60
9x= 54
x=9
3x9 +2 = 20 One side = 20
20x3=60 3 sides = 60