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pochemuha
3 years ago
14

2) What is the slope of a line perpendicular to the line y = 2x – 3 ?

Mathematics
2 answers:
trapecia [35]3 years ago
8 0
The answer is B, perpendicular lines must have slopes of the opposite sign, and the constant before x must be switched. In this case, 2 must become -1/2. It went from positive to negative and then 2/1 to 1/2. Hope this helped!
-BARSIC- [3]3 years ago
7 0

Answer:

The correct answer is c.

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Are the expressions 3/4a + 8 - 1/4a - 2 and 1/2(a + 12) equivalent? Show why or why not.
natta225 [31]

Answer:Yes they are equivalent.

Step-by-step explanation:

3/4a + 8 - 1/4a - 2 1/2(a + 12)

Combine like terms Distributive property

2/4a+6 1/2a+6

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3 years ago
A system of equations is shown below. y = –x – 3 5x + 2y = 9 What is the solution to this system?
erastovalidia [21]

Answer:

x=5\ and\ y=-8

The solution of the system can be given as (5,-8).

Step-by-step explanation:

Given system of equations:

y=-x-3

5x+2y=9

To solve the given system of equations:

Solution:

We will use substitution to solve the given system.

We will substitute the y values in terms of x from the equation y=-x-3 into the other equation to solve for x

Substituting y=-x-3 into 5x+2y=9.

We have:

5x+2(-x-3)=9

<em>Using distribution.</em>

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<em>Combining like terms.</em>

3x-6=9

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3x-6+6=9+6

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Dividing both sides by 3.

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∴ x=5

<em>Plugging in x=5 into y=-x-3.</em>

We have,

y=-5-3

∴ y=-8

The solution of the system can be given as (5,-8).

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Answer:

x = 50°

Step-by-step explanation:

180° - 80° = 100°

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Savatey [412]
Your answer is going to be C
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3 years ago
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