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2 years ago

Which best describes the relationship between the lines? 2x – y = −7 2x + 4y = 2

Mathematics

2 answers:

seropon [69]2 years ago

8 0

Answer:

Perpendicular

Step-by-step explanation:

2x - y = -7

2x + 4y = 2

-y = -2x - 7

4y = -2x + 2

y = 2x + 7

y = -1/2x + 1/2

Cannot be:

Parallel because the slope would otherwise be the same.

Same line because the equation is not proportional

So, they are perpendicular because a perpendicular line would be a negative and a reciprocal of the current line

ohaa [14]2 years ago

8 0

Answer:

perpendicular

Step-by-step explanation:

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3 years ago

Michael is trying to write the algebraic expression for the following word phrase: the quotient of 6 and the sum of 5 and y? Mic

gizmo_the_mogwai [7]

Answer:

Error: He multiplied 6 by 5 + y instead of divided 6 by 5 + y

Correct solution: 6 ÷ (5 + y)

Step-by-step explanation:

- Lets revise some words of some operations in mathematics

# The sum ⇒ (+) Add

# The difference ⇒ (-) subtract

# The product ⇒ (×) multiply

# The quotient (answer of division) ⇒ (÷) divide

* Lets solve the problem

- Michael is trying to write the algebraic expression for the following

word phrase:

the quotient of 6 and the sum of 5 and y

- Lets explain that: the quotient means the answer of division so he

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∵ The first quantity is 6

∵ The second quantity is the sum of 5 and y

- He wants to divide 6 by (5 + y)

∴ The expression is 6 ÷ (5 + y)

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* Correct solution: 6 ÷ (5 + y)

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3 years ago

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3 years ago

Multiply the problem,

frosja888 [35]

Answer:

The answer to your question is the letter B

Step-by-step explanation:

Data

| 5 0 | | 2 - 1 |

| 3 -5 | | 2 - 2|

Process

1.- This is the product of two matrices 2 x 2 so the result will be a 2 x 2 matrix.

- Multiply the first row of the first matrix by the first column of the second matrix.

-Multiply the first row of the first matrix by the second column of the second matrix.

- Multiply the second row of the first matrix by the first column of the second matrix.

-Multiply the second row of the first matrix by the second column of the second matrix.

| 5 0 | | 2 - 1 | | (5 x 2) + (0 x 2) (5 x -1) + (0 x -2) |

| 3 -5 | | 2 - 2| = | (3 x 2) + (-5 x 2) (3 x -1) + (-5 x -2)|

= | 10 + 0 -5 + 0 |

| 6 - 10 -3 + 10|

= | 10 - 5 |

| -4 7|

7 0

3 years ago

Solve by elimination 2x+2y=14

Maurinko [17]

Y = 7 -x is the correct answer.

3 0

3 years ago