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let y=6x^-0.5+2x+1, find dy/dx.

dy/dx = -6(0.5)x^-1.5+2 = -3x^-1.5+2
RL
Answered by Rodger L. • Maths tutor
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Explain the process that occurs in neuromuscular junctions from when the action potential in the pre-synaptic knob to transmission in the next neurone (6 marks).

The action potential in the pre-synaptic neurone causes calcium ion channels to open This causes calcium ions to diffuse into the neurone, down its concentration gradient This causes vesicles containing acet...
HE
Answered by Holly E. • Biology tutor
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Can firms in a perfectly competitive market make supernormal profits?

Firms in a perfectly competitive market can make supernormal profits but only in the short run. Supernormal profit is made where average revenue exceeds average cost. In a perfectly competitive market, firms...
AO
48088 Views

How am I meant to analyse an unseen poem when I can't even work out what the poem is about?

Firstly, don't forget that it's normal not to know what a poem is saying straight away! The whole idea of a poem is for a poet to put forward an idea or thought implicitly, using metaphors, rhyme, meter (and...
CG
4905 Views

Can you explain the quadratic formula?

The quadratic formula is used to solve the quadratic equation. Although methods like factorising or completing the square can easily be used, this offers another method which can be used for more difficult e...
SI
Answered by Shazeaa I. • Maths tutor
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