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Number Systems

Let x be rational and y be irrational. Is xy necessarily irrational? Justify your answer by an example.

05/11/2024

Mathematics

9th

Number Systems

Let x and y be rational and irrational numbers, respectively. Is x + y necessarily an
irrational number? Give an example in support of your answer.

05/11/2024

Mathematics

9th

Number Systems

The product of any two irrational numbers is
(A) always an irrational number
(B) always a rational number
(C) always an integer
(D) sometimes rational, sometimes irrational

05/11/2024

Mathematics

9th

Number Systems

Decimal representation of a rational number cannot be
(A) terminating
(B) non-terminating
(C) non-terminating repeating
(D) non-terminating non-repeating

05/11/2024

Mathematics

9th

Number Systems

Between two rational numbers
(A) there is no rational number
(B) there is exactly one rational number
(C) there are infinitely many rational numbers
(D) there are only rational numbers and no irrational numbers

05/11/2024

Mathematics

9th

Number Systems

Every rational number is
(A) a natural number (B) an integer
(C) a real number (D) a whole number

05/11/2024

Mathematics

9th

Improvement In Food Resources

Suggest some preventive measures for the diseases of poultry birds.

05/11/2024

Science

9th

Improvement In Food Resources

What would happen if poultry birds are larger in size and have no summer
adaptation capacity? In order to get small sized poultry birds, having
summer adaptability, what method will be employed?

05/11/2024

Science

9th

Improvement In Food Resources

Name two types of animal feed and write their functions

05/11/2024

Science

9th

Improvement In Food Resources

Discuss why pesticides are used in very accurate concentration and in
very appropriate manner?

05/11/2024

Science

9th