It means that the two vectors are perpendicular or orthogonal
I believe that a flat surface continuing in all directions is called a plane.
Answer:adult =180
Child = 120
Step-by-step explanation:
Answer:
The answer is below
Step-by-step explanation:
The system of equations:
8x-9y+13z=11
-8x-5y+5z=15
3x+4y-8z=-10
The equations can be represented in matrix form as:
AX = B
X = A⁻¹B
Therefore: