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Serjik [45]
3 years ago
11

Determine whether each sum, difference, product,

Mathematics
1 answer:
PIT_PIT [208]3 years ago
7 0

Answer:

28. The difference represents an irrational number

29. The difference represents a rational number

30. The quotient represents a rational number

31. The quotient represents an irrational number

Step-by-step explanation:

* Lets explain how to solve the problem

- The rational number is any numbers can be put in the form of a/b,

  where a and b are integers b ≠ 0

- Ex: 1 , 2/3 , 5/4 , 22/7 , 100 , ................

- The irrational number is any number that is not rational

- It is a number that cannot be written as a ratio of two integers

 or cannot be expressed as a fraction

- Ex: √2 , √7 , π ,  ..... (π is irrational because it's approximated value)

- If the part of the the number is irrational, then the number

 is irrational

- Ex: (5 + √3) , (√7 + 5) , 2√5 , √11/4 , 5/√13

* Lets solve the problems

28. \frac{6}{23}-\frac{\sqrt{2}}{2}

∵ √2/2 is an irrational number

∵ One term is an irrational number

∴ The difference represents an irrational number

29. \frac{6}{23}-\frac{15}{127}

∵ The two terms are rational numbers

∴ The difference represents a rational number

30. \frac{6}{23} ÷ \frac{15}{127}

∵ The two terms are rational numbers

∴ The quotient represents a rational number

31. \frac{6}{23} ÷ \frac{\sqrt{2}}{2}

∵ √2/2 is an irrational number

∵ One term is an irrational number

∴ The quotient represents an irrational number

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