If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form
: A= {A C} {B D}, find the value of a-b +c+d. 2x+8y=7 4x-2y=9 Please help, i dont know which number would be which letters
2 answers:
Answer: a-b+c+d =4
Step-by-step explanation:
The given system of equation is

from this we have the following matrices

the given matrix A =
On comparing Matrix
with Matrix A

we have the following values
a=2 ,b=4,c=8,d=-2
Thus a-b+c+d =2-4+8+(-2)=4
Matrix A ={ 2 8}{4 -2}, so a-b+c+d = 2-4+8+(-2) = 4
You might be interested in
Answer:
A
Step-by-step explanation:
Area of Triangle = BH/2
B = 11
Height = 2
11*2 = 22
22/2 = 11
11 sq units = A
The answer is exponential decay
Answer:
(1,2)
Step-by-step explanation:
The solution to the system is where the two lines cross.
They cross at x=1 and y=2
(1,2)
Answer:
the variable term is (t)
the answer is 13.50t
Answer:
19. parallel
20. corresponding
21. exterior
22. corresponding exterior angles
if not for the points i wouldve left u to suffer on ur own so yor welcome