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noname [10]
3 years ago
9

Use an inverse matrix to solve for the system of equations.

Mathematics
1 answer:
IrinaK [193]3 years ago
4 0

Answer:

(-1, 7, 2)

Step-by-step explanation:

we suppose that ax + by + cz = d for the matrix

D = det [ 0    4     7] = 100

              -6   0    -2

               1    2     8

Dx= det [ 14    4     7] = - 100

               10   0    -2

               -3    2     8

Dy= det [ 0    14    7] = 700

               -6   10    -2

                1    -3    8

Dz = det [ 0    4    14] = 200

               -6   0     10

                1    2     -3

So the solution is:

x = Dx/D = -1, y = Dy/D= 7, z =Dz/D = 2

(-1, 7, 2)

have a good day!

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Amiraneli [1.4K]
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3 0
3 years ago
Pythagorean Brotherhood was a secret society but a little is known about it. Suggest principles of their education. Discuss the
yan [13]

Answer:

They use Phylosophy as a means of Spiritual cleansing.

The Pythagorean theorem.

The Demand that members must live in strict secrecy and loyalty.

The appeal to certain symbols like Tetraktys etc.

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Step-by-step explanation: The Pythagorean brotherhood is believed to have originated from Sounthern Italian city known as Croton. It was started by a man called Pythagoras from Samos Greece, he is a controversial phylosopher.

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6 0
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12. Three fifths of the children at my party like chocolate ice cream. How many of the 20 children at my party do not like choco
brilliants [131]

Answer:

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Brainlest please

Your Welcome

BIFFY OUT!!!

5 0
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Answer:

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Step-by-step explanation:

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Answer:

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6 0
3 years ago
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