3 years ago

What is the difference between rational and irrational Numbers ?

1 answer:

7 0

An irrational number can be written as a decimal, but not as a fraction and a rational number is a number that can be written as a ratio. That means it can be written as a fraction

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How do i solve 3x² - 8x + 2 = 0 using quadratic formula?

DENIUS [597]

$3x^2 - 8x + 2 = 0\\ \\a=3 , \ \ b=-8 , \ \ c=2 \\ \\x_{1}=\frac{-b-\sqrt{b^2-4ac}}{2a} =\frac{8-\sqrt{ (-8)^2-4 \cdot 3\cdot 2}}{2 \cdot 3} =\frac{8-\sqrt{ 64-24 }}{6} =\\ \\ =\frac{8-\sqrt{40 }}{6} = \frac{ 8-\sqrt{4\cdot 10 } }{6} = \frac{ 8-2\sqrt{ 10 }}{6} = \frac{2 (4-\sqrt{ 10 })}{6} = \frac{ 4-\sqrt{ 10 } }{3}$

$x_{2}=\frac{-b+\sqrt{b^2-4ac}}{2a} =\frac{8+\sqrt{ (-8)^2-4 \cdot 3\cdot 2}}{2 \cdot 3} = \frac{ 4+\sqrt{ 10 } }{3}$

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3 years ago

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Mumz [18]

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3 years ago

At the end of the Crimson Comet's soccer season, Coach Billy hosted a party for the players. He had 24 players on his team and o

stealth61 [152]

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HUH. OH 40

Step-by-step explanation:

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May someone please explain to me how to do this in the easiest way? I don't really understand. Thanks❤

katrin [286]

Ok, so 1 is a whole number. 1/5 is a fraction of 1. So you want to subtract 1/5 from 1. The number 1 is equal to 5/5. So if you subtract 1/5 from 5/5 you are left with 4/5. You do the same with the second one, just subtract 3/5 from 5/5 to get your answer.

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Step-by-step explanation:

because you subtract it.

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4 years ago