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kodGreya [7K]
2 years ago
14

Prove that 2✓3 is an irrational number .​

Mathematics
1 answer:
Ainat [17]2 years ago
3 0

Answer:

\bold{2\sqrt{3} ~is~irrational.}

Step-by-step explanation:

Hi there!

\bold{2\sqrt{3} } is an irrational number.

Now, what is an irrational number? An irrational number is a number that goes on for ever.

Examples: \bold{\pi ,\sqrt{2} , \sqrt{3} ....}

\bold{\sqrt{3} } is a surd (an irrational square root)

If we multiply 2 times \bold{\sqrt{3} }, we will get an irrational number.

Thus, \bold{2\sqrt{3} } is an irrational number.

Hope it helps! Enjoy your day!

\bold{GazingAtTheStars}

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What is the estimated margin of error, using standard deviation?
OLEGan [10]
Find the mean ( average):
105 + 104 + 110 + 112 + 114 + 106 + 108 +109 = 868
Mean = 868 / 8 = 108.5

Standard deviation:
108.5 - 105 = 3.5, 3.5^2 = 12.25
108.5 - 104 = 4, 4^2 = 16
110 - 108.5 = 1.5, 1.5^2 = 2.25
112 - 108.5 = 3.5, 3.5^2 = 12.25
114 - 108.5 = 5.5, 5.5^2 = 30.25
108.5 - 106 = 2.5, 2.5^2 = 6.25
108.5 - 108 = 0.5, 0.5^2 = 0.25
109 - 108.5 = 0.5, 0.5^2 = 0.25

12.25 + 16 +2.25 + 12.25 + 30.25 +6.25+0.25+0.25 = 79.75
79.75/8 = 9.96875, SQRT(9.96875) = 3.1573

Standard Deviation = 3.1573

108.8 +/- 1.96 *(3.1573/sqrt(8) = 110.687 and 106.312

110.687 - 108.5 = 2.19
108.5 - 106.312 = 2.19
 

Margin of error = +/- 2.19



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The table represents the balance of Fernando’s loan, y, over a period several months, x. He used technology to create the scatte
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X-4=10;4x+1=57<br>i need to change the first equation into to the second equation.
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Is this what you mean this is what i understood.



X-4=10;4x+1=57


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3 years ago
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