Answer:
The coefficient matrix is represented by .
The augmented matrix is represented by .
Step-by-step explanation:
From Linear Algebra we know that a system of linear equations with variables can be represented as a matrix product:
Where:
- Coefficient matrix, a matrix.
- Variable matrix, a matrix.
- Equivalence matrix, a matrix.
Then, the given system is represented as:
The coefficient matrix is represented by .
The augmented matrix consist in the union of the coefficient and equivalence matrices. That is:
The augmented matrix is represented by .
Answer:
Perimeter of rectangle = 4x + 80
Area = x² + 40x + 384
Step-by-step explanation:
Perimeter of rectangle = 2*(length + width)
= 2* (x + 24 + x + 16)
= 2*( x +x + 24 + 16) {Combine like terms}
= 2* (2x + 40)
Use Distributive property : a*(b +c) = a *b + a*c
= 2*2x + 2*40
= 4x + 80
Area of rectangle = length * width
= (x + 24) (x + 16) {use FOIL method}
= x*x + x*16 + 24*x + 24*16
= x² + 16x + 24x + 384 {Combine like terms}
= x² + 40x + 384
Answer:
The domains of the first graph is (1.5, 0) and (4.5,0)
There would be A) 12 cupcakes that are strawberry