Answer:
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Step-by-step explanation:
x = -0.2, y = 0.5
x = 0.5, y = -0.2
x = 2, y = -5
The correct option is D. x = 2, y = -5. The values of x and y of the solution to the system of equations are 2, -5.
When solving a set of equations in mathematics, a matrix is a collection of integers or expressions.
The matrix A is
[A]=[4 -6 8 -2]
The matrix Ax is
[Ax]=[38 -6 26 -2]
The matrix Ay is
[Ay]=[4 38 8 26]
All of the matrices' determinant is
|A| = 40
|Ax| = 80
|Ay| = -200
The value of x is (|Ax|) /(|A|) = 80/(40) = 2
The value of y is ( |Ay|)/(|A|) = -200/(40) = -5
Therefore, the value of x and y is 2, -5. The correct option is D
Learn more about system of equations here
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Answer:
What is the constant rate?
Step-by-step explanation: