Write the coefficient matrix and the augmented matrix of the given system of linear equations. 7x_1 + 6x_2 = 6
2x_1 - 8x_2 = 4
What is the coefficient matrix?

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 .

i don't have the answer rn but go to math papa. it shows the steps and the answer. hope this : )

step-by-step explanation:

1. sometimes

2.   never

3   .08c = 7.50+.05c   250 pages

step-by-step explanation:

1.   sometimes

the theoretical probability of rolling a 1 is 1/6.   perhaps you got really lucky and never rolled a 1   in those 60 times.   your experimental probability is 0.   or perhaps you rolled a 1   20 times.   your experimental probability is 20/60 is 1/3.     it really just depends on how you rolled in that experiment.

2.   never

the probability of the event occurring is 1.   that is being 100 % sure it will happen.   that is the maximum amount of confidence we have.

3.   no customer card cost:   .08 times number of pages

customer card cost:   7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03

c =250  

the cost is the same at 250 pages