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Q: Are all nonterminating decimals irrational numbers?

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No, they are not. Recurring decimals are rational.

All rational numbers can be converted from decimals to fractions as for example 0.75 = 3/4 but irrational numbers can not be converted from decimals to fractions.

All rational and irrational numbers are real numbers.

No. All irrational numbers are real, not all real numbers are irrational.

There are infiitelt many subsets of irrational numbers. One possible subset is the set of all positive irrational numbers.

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No, they are not. Recurring decimals are rational.

No.

No integers are irrational numbers. An integer is a whole number, positive or negative. This means they have no decimals or fractions. An irrational number, however, is a number with fractions or decimals. Therefor, there are no integers that are irrational numbers.

.333333333...; .999999999999...; .666666666666666...; etc. All irrational numbers, basically.

No. All natural numbers are whole, so they are rational. Irrational numbers like pi and the square root of 34 come in decimals.

No, they could not. Irrational numbers are also decimal numbers.

All rational numbers can be converted from decimals to fractions as for example 0.75 = 3/4 but irrational numbers can not be converted from decimals to fractions.

Infinitely many. pi is not just an irrational number but a transcendental number. All irrational numbers have infinite decimals that do not go into a recurring pattern.

All irrational numbers are non-terminating decimals that can't be expressed as fractions

No because non-repeating decimals may be terminating.But suppose you consider terminating decimals as consisting of repeating 0s. That is, 1/8 = 0.125 = 0.12500....Then all non-repeating decimals are irrational.

Yes, except that all irrational numbers will be non-terminating, non-repeating decimals.

Germany is the name of a country and so does not have repeating decimals.

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