Answer:
-4.24264069; -4.2 (nearest tenth); -4.24 (nearet hundreths)
Explanation:
square root of 72 = 8.48528137 or 8.5 (rounding to tenths)
square root of 2 = 1.41421356 or 1.4
square root of 128 = 11.3137085 or 11.3
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