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Earn +20 ptsQ: Is 5.6 irrational
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Is the fraction 56 over 7 an irrational?
No, it is rational 56/7 = 8 which is rational
Can you find irrational numbers between 7 and 8?
72 = 49 and 82 = 64. So, the square root of any integer between these two numbers, for example, sqrt(56), is irrational.
Is there a perfect cube of 56?
The question could ask for the perfect cube of 56, which equals 563 = 175616. However, it can also mean to ask whether 56 can be a cube, which could be answered by 56(1/3), which cubed is 56. Since 56(1/3) is an irrational number, it is impossible to construct this perfectly, but one can make arbitrary precise approximations, close to 3.825862365...
Is an irrational number raised to an irrational power irrational?
yes
Can 2 irrational add to an irrational number?
Yes. The sum of two irrational numbers can be rational, or irrational.
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