To determine which square roots have a difference of about 0.5, let's first approximate the square roots of the given numbers:
- \( \sqrt{11} \approx 3.32 \)
- \( \sqrt{14} \approx 3.74 \)
- \( \sqrt{19} \approx 4.36 \)
- \( \sqrt{24} \approx 4.90 \)
Now we can calculate the differences between these square roots:
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\( \sqrt{19} - \sqrt{24} \approx 4.36 - 4.90 = -0.54 \) (this is about 0.5)
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\( \sqrt{14} - \sqrt{19} \approx 3.74 - 4.36 = -0.62 \) (this is about 0.5)
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\( \sqrt{11} - \sqrt{14} \approx 3.32 - 3.74 = -0.42 \) (this is about 0.5)
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\( \sqrt{11} - \sqrt{19} \approx 3.32 - 4.36 = -1.04 \) (this is not close to 0.5)
Now let's summarize the approximate differences:
- \( \sqrt{19} \) and \( \sqrt{24} \) have a difference of approximately 0.54.
- \( \sqrt{14} \) and \( \sqrt{19} \) have a difference of approximately 0.62.
- \( \sqrt{11} \) and \( \sqrt{14} \) have a difference of approximately 0.42.
Thus, the pairs that have differences close to 0.5 are:
- \( \sqrt{19} \) and \( \sqrt{24} \)
- \( \sqrt{14} \) and \( \sqrt{19} \)
- \( \sqrt{11} \) and \( \sqrt{14} \)
From the options provided, the pairs that have a difference of about 0.5 are:
- \( \sqrt{19} \) and \( \sqrt{24} \) (1. option)
So the correct answer is: \( \sqrt{19} \) and \( \sqrt{24} \).