To evaluate the expression \( \sqrt{19} - \frac{3}{2} \), we need to calculate each part separately.
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Calculate \( \sqrt{19} \): The square root of 19 is an irrational number, approximately equal to 4.3589.
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Calculate \( \frac{3}{2} \): This is a simple fraction that equals 1.5.
Now, we can substitute these values into the expression:
\[ \sqrt{19} - \frac{3}{2} \approx 4.3589 - 1.5 = 2.8589 \]
Since \( \sqrt{19} \) is an irrational number and \( \frac{3}{2} \) is a rational number, the result of their subtraction \( \sqrt{19} - \frac{3}{2} \) will also be an irrational number.
Therefore, the type of number that will result from the expression \( \sqrt{19} - \frac{3}{2} \) is an irrational number.