2 years ago

A square matrix that does not have an inverse is most specifically called a

Mathematics

1 answer:

Sever21 [200]2 years ago

3 0

A square matrix that is not invertible is called singular or degenerate.

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Question 10 of 21

PSYCHO15rus [73]

ANSWER

A. (4,12)

EXPLANATION

The equations are:

$10x +2y = 64...(1)$

and

$3x - 4y = -36...(2)$

To eliminate a variable we make the coefficients of that variable the same in both equations.

It is easier to eliminate x.

We multiply the first equation by 2 to get:

$20x + 4y = 128...(3)$

We add equations (2) and (3).

$3x + 20x + 4y - 4y = - 36 + 128$

$23x = 92$

Divide both sides by 23

$\frac{23x}{23} = \frac{92}{23}$

$x = 4$

Put x=4 into equation (1).

$10(4)+2y = 64$

$40+2y = 64$

$2y = 64 - 40$

$2y = 24$

$\frac{2y}{2} = \frac{24}{2}$

$y = 12$

The solution is (4,12)

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3 years ago

1) 8(4w - 5) = 2) 7 (-35 - 6) - can you help me solve these

tankabanditka [31]

1) 32w -40
2) -275

Lmk if it helped you

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2 years ago

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Out of a salary of $4500. I kept 1/3 as saving. Out of the remaining money. I spend 50% on food and 20% on house rent. How much

Step2247 [10]

Well 1/3 for savings means that you save 1/3*4500 or 1500 dollars.
You then have $3000 left. Of this if you spend 50% on food, you spend 0.5*3000 or 1500 dollars on food.

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2 years ago

The apothem is perpendicular to a side and forms two

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Answer:

Step-by-step explanation:

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2 years ago

A high school will graduate 100 students of these 52 plan on going to collegewhat percent of the students plan to go to college

Jlenok [28]

52% because its 52 out of 100

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3 years ago