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aleksley [76]
3 years ago
15

Which of the following sets are closed under division? Select all that apply.

Mathematics
2 answers:
worty [1.4K]3 years ago
8 0

Answer:

None of the Above

Step-by-step explanation:

<u>Integers:</u>

Take a=1,b=2

Here, \frac{a}{b}=\frac{1}{2}

Since \frac{1}{2} is not an integer , integers are not closed under division .

<u>Irrational Numbers: </u>

Take a=\sqrt{3},b=\sqrt{27}

Here,\frac{a}{b}=\frac{\sqrt{3} }{\sqrt{27} }=\frac{1}{\sqrt{9} }=\frac{1}{3}

Since \frac{1}{3} is not an irrational number , irrational numbers are not closed under division.

<u>Whole Numbers:</u>

Take a=2,b=3

Here, \frac{a}{b} =\frac{2}{3}

Since \frac{2}{3} is not a whole number, whole numbers are not closed under division.

<u>Polynomials:</u>

Take two polynomials as 2x+3 , 0

Here, \frac{2x+3}{0} is not defined.

Since \frac{2x+3}{0} is not a polynomial, polynomials are not closed under division .

So, the correct option is none of the above

Lilit [14]3 years ago
6 0
The appropriate choice is probably
  none of the above


While the inverse of any irrational number is irrational, their ratio my not be, for example (√8)/(√2) is rational.
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3 years ago
The length of a rectangle is 59 inches greater than twice the width. If the diagonal is 2 inches more than the​ length, find the
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Now that we have done that, we need to translate all our givens into numbers. Here is how that would look like:
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If we draw a diagram, we can see that the diagonal, length, and width all create a right triangle, which means that we can use the Pythagorean Theorem. By using right triangle postulates and theorems, we can deduce that the diagonal is the hypotenuse. Here is what our setup looks like:
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3 years ago
A sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.
meriva

Answer:

Step-by-step explanation:

sports store sells three different packs of tennis balls. Brand A costs $2.50 for two balls, brand B sells three balls for $3.90, and brand C has a sale of four balls for $5.12. Which inequality about the unit price per ball is correct

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Brand B:

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Brand C:

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4 0
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