A Math · Secondary 4 · Hard · Connected rates of change
Water is poured out of a tank so that its volume V in m3 is related to the water depth h in metres by V=2h3. When h=1.5, the volume is decreasing at −1.2m3min−1. Find dtdh at this instant.
−0.089m min−1
−0.18m min−1
−0.044m min−1
0.089m min−1
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