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Pachacha [2.7K]
3 years ago
15

Помогите с решением Матриц

Mathematics
1 answer:
vivado [14]3 years ago
5 0

Answer:

я не знаю потому что я не говорю по русски

Step-by-step explanation:

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The solution for the system equations 8x-6y=-32 and -8x+5y=36
Ghella [55]

Answer:

x=47, y=68

Step-by-step explanation:

Add the two equations. Then we get

-y=-68

y=68

Substituting the value of y in the first equation,

8x-6(68)=-32

8x-408=-32

8x=376

x=47

6 0
3 years ago
What is the value of y in the equation 6.4x + 2.8y = 44.4, when x = 3?
Harlamova29_29 [7]

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Hi! The answer to your question is y = 9

Step-by-step explanation:

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3 years ago
Which term best describes lines that meet at right angles ?
Sholpan [36]

Answer:

Perpendicular

Step-by-step explanation:

Perpendicular lines meet at a 90 degree angle.

5 0
3 years ago
21 is 84% of what number?
Radda [10]
21 is 84% of 25

Convert the percentage (84) into a decimal by dividing it over 100:
\frac{84}{100} = 0.84

Divide 21 over 0.84:
\frac{21}{0.84} = 25
7 0
3 years ago
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koban [17]
The answer should be 46.12
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