Question

Which number is rational? (1 point)
Responses

2√4
the fraction with numerator square root of 2 and denominator 4

0.98989898...
0.98989898...

0.23242526...
0.23242526...

15−−√

Answer 1

To determine which numbers are rational, we need to evaluate each option:

1. **2√4:**
- √4 = 2, so 2√4 = 2 * 2 = 4.
- 4 is a rational number.

2. **The fraction with numerator √2 and denominator 4:**
- This simplifies to √2/4. Since √2 is an irrational number, this fraction is also irrational.

3. **0.98989898...:**
- This is a repeating decimal, and repeating decimals can be expressed as fractions. Therefore, this is a rational number.

4. **15−−√:**
- √15 is an irrational number, thus this is not a rational number.

Based on this evaluation, the rational numbers in the list are:

- **2√4 (which equals 4)**
- **0.98989898...** (the repeating decimal)

Therefore, the options that are rational are **2√4 and 0.98989898...**.

However, if you are looking for just one response, either of those would be a valid answer. If it's a single choice question, choose **0.98989898...** as it's explicitly stated in the list.