Westonci.ca is your go-to source for answers, with a community ready to provide accurate and timely information. Join our Q&A platform to connect with experts dedicated to providing precise answers to your questions in different areas. Explore comprehensive solutions to your questions from knowledgeable professionals across various fields on our platform.

Match each number on the left with the correct description of the number on the right. Answer options on the right may be used more than once.

1. [tex]$3 \frac{1}{2}$[/tex]

2. [tex]$0.56$[/tex]

3. [tex]$5$[/tex]

4. [tex]$\sqrt{11}$[/tex]

5. [tex]$-3 \frac{1}{2}$[/tex]

Descriptions:
A. This is an integer.
B. This is a rational number, but not an integer.
C. This is an irrational number.


Sagot :

Sure! Let's analyze each number one by one and match them to the appropriate descriptions.

### Analyzing the Numbers

1. [tex]\( 3 \frac{1}{2} \)[/tex]:
- This number is written as a mixed number, which can be converted to an improper fraction: [tex]\( 3 \frac{1}{2} = \frac{7}{2} \)[/tex].
- A rational number is any number that can be expressed as the quotient of two integers (where the denominator is not zero).
- [tex]\( \frac{7}{2} \)[/tex] is such a quotient, so it is a rational number.
- Since [tex]\( \frac{7}{2} \)[/tex] is not a whole number (it's not an integer), we describe it as: "This is a rational number, but not an integer."

2. 0.56:
- This number is a decimal which can be expressed as a fraction: [tex]\( 0.56 = \frac{56}{100} \)[/tex].
- Simplifying, [tex]\( 0.56 = \frac{14}{25} \)[/tex].
- Since it can be written as the quotient of two integers, it is a rational number.
- However, because it is not a whole number (it's not an integer), we describe it as: "This is a rational number, but not an integer."

3. 5:
- This number is a whole number.
- It directly falls into the category of integers.
- As an integer itself, we simply describe it as: "This is an integer."

4. [tex]\( \sqrt{11} \)[/tex]:
- The square root of 11 is not a perfect square, meaning it cannot be expressed as the quotient of two integers.
- Numbers like these, which cannot be written as simple fractions, are called irrational numbers.
- We describe it as: "This is an irrational number."

5. [tex]\( -3 \frac{1}{2} \)[/tex]:
- This number is also a mixed number, which can be converted to an improper fraction: [tex]\( -3 \frac{1}{2} = -\frac{7}{2} \)[/tex].
- Since [tex]\( -\frac{7}{2} \)[/tex] can be expressed as a quotient of two integers, it is a rational number.
- However, it is not a whole number (not an integer), so we describe it as: "This is a rational number, but not an integer."

### Matching to Descriptions

- [tex]\( 3 \frac{1}{2} \)[/tex]: This is a rational number, but not an integer.
- 0.56: This is a rational number, but not an integer.
- 5: This is an integer.
- [tex]\( \sqrt{11} \)[/tex]: This is an irrational number.
- [tex]\( -3 \frac{1}{2} \)[/tex]: This is a rational number, but not an integer.

Let’s summarize our answers:

1. [tex]\( 3 \frac{1}{2} \)[/tex] — This is a rational number, but not an integer.
2. 0.56 — This is a rational number, but not an integer.
3. 5 — This is an integer.
4. [tex]\( \sqrt{11} \)[/tex] — This is an irrational number.
5. [tex]\( -3 \frac{1}{2} \)[/tex] — This is a rational number, but not an integer.

These descriptions correctly match each number with its respective classification.