Which statement describes - 1/11 ?
A.
It is an irrational number.
B.
It is a rational number that has a repeating decimal expansion.
C.
It is a rational number that has a terminating decimal expansion.
D.
It is not a rational number because it is negative.

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Answer:

B

Step-by-step explanation:

The rational number is the number which can be written as [tex]\frac{p}{q},[/tex] where q is natural and p is integer.

Theorem: If m is a rational number, which can be represented as the ratio of two integers i.e. [tex]\frac{p}{q},[/tex]  and the prime factorization of q takes the form [tex]2^x\cdot 5^y[/tex], where x and y are non-negative integers then, it can be said that m has a decimal expansion which is terminating.

Theorem: If m is a rational number, which can be represented as the ratio of two integers i.e. [tex]\frac{p}{q},[/tex]  and the prime factorization of q does not take the form [tex]2^x\cdot 5^y[/tex], where x and y are non-negative integers. Then, it can be said that m has a decimal expansion which is non-terminating repeating (recurring).

The fraction [tex]\frac{1}{11}[/tex] is a rational number, because 1 is integer and 11 ia natural. So, options A and D are false.

Since we cannot represent 11 as a product [tex]2^x\cdot 5^y[/tex], then [tex]\frac{1}{11}[/tex] is a rational number that has a repeating decimal expansion. Option B is true.

Answer:

Answer:

B

Step-by-step explanation:

The rational number is the number which can be written as  where q is natural and p is integer.

Theorem: If m is a rational number, which can be represented as the ratio of two integers i.e.   and the prime factorization of q takes the form , where x and y are non-negative integers then, it can be said that m has a decimal expansion which is terminating.

Theorem: If m is a rational number, which can be represented as the ratio of two integers i.e.   and the prime factorization of q does not take the form , where x and y are non-negative integers. Then, it can be said that m has a decimal expansion which is non-terminating repeating (recurring).

The fraction  is a rational number, because 1 is integer and 11 ia natural. So, options A and D are false.

Since we cannot represent 11 as a product , then  is a rational number that has a repeating decimal expansion. Option B is true.

Step-by-step explanation: