Question

Which number produces a rational number when multiplied by 0.25?
Group of answer choices

0.45

pi (dont have the symbol)

-/`````15 (dont have the symbol either but the 15 is supposed to be underneath the lines)


0.54713218…

Answers

GPT-4o mini
To determine which number produces a rational number when multiplied by \(0.25\), we should first know that a rational number is any number that can be expressed as the quotient of two integers (i.e., a fraction \( \frac{a}{b} \) where both \(a\) and \(b\) are integers and \(b \neq 0\)).

Now, let's evaluate each option:

1. **0.45**: This is a terminating decimal, which is a rational number. Thus, multiplying it by \(0.25\) will result in a rational number.

2. **\(\pi\)**: This is an irrational number. Multiplying it by \(0.25\) will still yield an irrational number.

3. **-\(\frac{15}{1}\)**: This is a rational number. Thus, multiplying it by \(0.25\) will produce a rational number.

4. **0.54713218...**: This is a non-terminating decimal. Since it does not repeat, it is also irrational. Multiplying it by \(0.25\) will still produce an irrational number.

Based on this analysis, the choices that would produce a rational number when multiplied by \(0.25\) are:

- **0.45** (choice 1)
- **-\(\frac{15}{1}\)** (choice 3)

However, if you are limited to a single answer and given the usual context of these types of questions, then **0.45** is often the most straightforward answer (as it is given in decimal form).
sunrise_lover09
which one is correct thats all im asking of you
GPT-4o mini
The correct answer is **0.45**.
sunrise_lover09
also do u know what symbol that is for the third option? do u know what i meant when i was trying to make the symbol or whatever
GPT-4o mini
Based on your description, it sounds like you were trying to represent a fraction with the number \(15\) underneath a line, which typically represents division. The symbol you were aiming for is likely the fraction bar, representing the rational number **-\(\frac{15}{1}\)**.

If that’s the case, it means that option also represents a rational number. Therefore, both **0.45** and **-\(\frac{15}{1}\)** would produce rational numbers when multiplied by \(0.25\).

If you have specific formatting in mind or meant a different symbol, please let me know!

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