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Gwar [14]
4 years ago
14

Transform this matrix to reduced row echelon form: 2 −1 −4 7 0 −30 20 −50 0 0 44 −44

Mathematics
2 answers:
Yakvenalex [24]4 years ago
3 0

Answer:

1 0 0 2

0 1 0 1

0 0 1 -1

Step-by-step explanation:

Paladinen [302]4 years ago
3 0

Answer:

2

1

-1

Part 2:

x: 2

y: 1

z: -1

Step-by-step explanation:

Edgenuity2020

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3 years ago
2 sin^2 + sin x - 3 = 0
denpristay [2]

Answer:

x = 2 π n_1 + π/2 for n_1 element Z

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Step-by-step explanation:

Solve for x:

-3 + sin(x) + 2 sin^2(x) = 0

The left hand side factors into a product with two terms:

(sin(x) - 1) (2 sin(x) + 3) = 0

Split into two equations:

sin(x) - 1 = 0 or 2 sin(x) + 3 = 0

Add 1 to both sides:

sin(x) = 1 or 2 sin(x) + 3 = 0

Take the inverse sine of both sides:

x = 2 π n_1 + π/2 for n_1 element Z

or 2 sin(x) + 3 = 0

Subtract 3 from both sides:

x = 2 π n_1 + π/2 for n_1 element Z

or 2 sin(x) = -3

Divide both sides by 2:

x = 2 π n_1 + π/2 for n_1 element Z

or sin(x) = -3/2

Take the inverse sine of both sides:

Answer:  x = 2 π n_1 + π/2 for n_1 element Z

or x = π + sin^(-1)(3/2) + 2 π n_2 for n_2 element Z or x = 2 π n_3 - sin^(-1)(3/2) for n_3 element Z

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Contact [7]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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6h = 16.2 ( divide both sides by 6 )

h = 2.7


6 0
3 years ago
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