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V= 4(h^3 +1)^0.5 - 4, find dv/dh when h=2

V= 4(h 3 +1) 0.5 - 4 dV/dh= (4x 0.5) x 3h 2 x (h 3 +1) -0.5 => 6h 2 (h 3 +1) -0.5 Substitute h=2 into dV/dh => (6x2 2 )x(2 3 +1) -0.5 => 24 x 1/3 = 8
OD
Answered by Oliver D. • Maths tutor
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On what grounds to Conservatives justify social hierarchy? (15 marks)

This is an A-level question under the topic of Introducing Political Ideologies. It is important to start 15 markers with a definition of some kind - in this case I would define social hierarchy. Social hier...
TG
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How do hormones affect the menstrual cycle?

There are 3 hormones mentioned in the AQA GCSE Biology specification. These are FSH (follicle stimulating hormone), LH (leuteinising hormone), and oestrogen. FSH and LH are produced by the pituitary gland in...
VM
Answered by Vanisha M. • Biology tutor
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What is a synapse and how does information pass across it?

A synapse is a junction between two neurones. Information is passed from one neurone to the other in the form of a chemical (which is also known as a neurotransmitter). The chemical (neurotransmitter) is rel...
SD
Answered by Susanne D. • Dutch tutor
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What are the key elements you might identify when analysing a poem?

Try to spot the overarching message of the poem and the themes are touched upon. It is also important to identify the key techniques are used (e.g. characterization/ imagery/ sibilance/ metaphore). The form ...
KA
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