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Step2247 [10]
3 years ago
7

What paces back and forth on the ocean floor

Mathematics
1 answer:
eduard3 years ago
5 0

the answer is A nervous wreck

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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
I dont understand this equation.
amm1812
Where is the question and what is it?
4 0
2 years ago
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Kathy goes to a Halloween store that is closing for the season, so everything is 60% off of the original price.
julsineya [31]

Answer:D

Step-by-step explanation:

7 0
2 years ago
Onii-Chan help me whit 5-8
lina2011 [118]
The answer to 5-8 is 3
4 0
3 years ago
The Distributive Property also combines subtraction and multiplication. for example, . 3 * ( 5 - 2 ) = ( 3 * 5 ) - ( 3 * 2 ).
Sholpan [36]
So the problem ask to find or solve the problem using distributive property, so to calculate if using distributive property is just the same calculation if you are multiplying two number using a paper so the answer is 5(8)+5(90)+5(100), 40+ 450+500 = 990. I hope you understand my answer 
6 0
3 years ago
Read 2 more answers
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