To determine which inequalities are true using rational approximations, we can evaluate the square roots involved.
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Comparing \(\sqrt{48}\) and \(\sqrt{36}\):
- \(\sqrt{36} = 6\)
- \(\sqrt{48} \approx 6.928\) (since \(\sqrt{48} = \sqrt{16 \cdot 3} = 4\sqrt{3} \approx 4 \times 1.732 \approx 6.928\))
Since \(6.928 > 6\), we have: \[ \sqrt{48} > \sqrt{36} \]
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Comparing \(\sqrt{49}\) and \(7\):
- \(\sqrt{49} = 7\)
Hence, we have: \[ \sqrt{49} = 7 \]
From our evaluations, the true statements are:
- \(\sqrt{48} > \sqrt{36}\)
- \(\sqrt{49} = 7\)
Thus, the true statement among the options provided is: \[ \sqrt{48} > \sqrt{36} \quad \text{(first option)} \]
Therefore, the correct response is: \(\sqrt{48} > \sqrt{36}\).