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During exercise, blood glucose concentration falls due to the increased energy demand and glucose uptake of skeletal muscles. This fall in glucose concentration is detected by the alpha and beta cells in ...

This question wants us to find: dh/dt. We are given: dV/dt=80π and V=4πh(h+4). The equation to use here is: dh/dt = dh/dV x dV/dt. We kn...

Since we have to differentiate a fraction, we must use the quotient rule. 

The quotient rule: If y = u/v, dy/dx = (vdu/dx - udv/dx)/v²

So we must work out each of the ter...

x = 0.848,2.29

Positive statements are objective and can be tested whether they are true or false.

Normative statements are subjective value judgements that cannot be tested whether they are true or false.