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Rufina [12.5K]
2 years ago
15

What would an equation be if a line passes through (7, -7) and (7, -1)

Mathematics
1 answer:
Ksivusya [100]2 years ago
4 0

Answer:

hope you will understand my handwriting and if it was helpful for you then plz mark me as brainliest

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Pls help i am on a timer
stich3 [128]

Answer:

x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}

Step-by-step explanation:

Given;

x² - 2x - 1 = 0

Solve by completing the square method;

⇒ take the constant to the right hand side of the equation.

x² - 2x = 1

⇒ take half of coefficient of x = ¹/₂ x -2 = -1

⇒ square half of coefficient of x and add it to the both sides of the equation

x^2 +  (-1)^2 = 1 + (-1)^2

(x-1)^2 = 1 + 1\\\\(x-1)^2 = 2\\\\

⇒ take the square root of both sides;

x-1 = +/- \ \ \sqrt{2} \\\\x = 1 + \sqrt{2} \ \ or \ 1- \sqrt{2}

Therefore, option B is the right solution.

3 0
2 years ago
Which mixed number is equivalent to this decimal?  8.00027  
bearhunter [10]
Is that even a number

4 0
3 years ago
Read 2 more answers
What is the first step needed to solve 3 over 4 multiplied by x minus 3 equals negative 18?
NemiM [27]
My answer would be to add 3 to both sides
8 0
3 years ago
Amino Buys A Book For Rupees 275 And Sells It At A Loss Of 15% How Much Does She Sell It For
Kruka [31]

Answer:

$233.75

Step-by-step explanation:

2.75 x 15 = 41.25

275 - 41.25 = $233.75

7 0
2 years ago
Read 2 more answers
Which is equivalent to 4x/x-7 - x+7/x
spin [16.1K]

Answer:

The answer to your question is the second choice

Step-by-step explanation:

                        4x/ (x - 7)  -  (x +7) / x

- Find the greatest common factor from x and (x - 7)

                 GCF = x(x - 7)

- Substract the terms

                     [4x(x) - (x + 7)(x - 7)] / x(x - 7)

- Simplify

                     [ 4x² - x² + 49] / x(x - 7)

                     [ 3x² + 49] / x(x - 7)

- Result

                      3x² + 49  /  x(x - 7)

                       

6 0
3 years ago
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