Answer:
C
Step-by-step explanation:
The inverse of a matrix is the transpose of the cofactor matrix, divided by the determinant. The determinant is (4)(3) -(1)(-5) = 17, eliminating choice B.
In a 2×2 matrix, the transpose of the cofactor matrix swaps the diagonal elements, and negates the off-diagonal elements. That is, the transpose of the cofactor matrix will look like the matrix of B. When that is divided by 17, you get the matrix of answer choice C.
Answer:
The answer is C I believe.
Step-by-step explanation:
Answer:
Yes
Step-by-step explanation:
Because they are the same equations, just flipped. hope this helped
Answer:
Step-by-step explanation:
Remark
You need 2 formulas to solve this. Use perimeter first and then area.
Formulas
P = 4s
Area = s^2
Givens
Perimeter = 24 feet
Solution
<em>P = 4*s </em> Substitute the value for P
24 feet = 4s Divide both sides by 4
24/4 = 4s/4
6 = s
<em>Now use the area formula</em>
Area = s^2 Substitute 6 for s
Area = 6^2
Area = 36 feet^2
Answer
Area = 36 ft^2
Answer: (-2,-11)
Step-by-step explanation:
We looking for values that will satisfy the equation upon inspection, when x is -2, the equation gives y=-11 .
I.e y=4x-3 ,when x=2
Y= 4(-2)-3
Y= -8-3
Y= -11