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Find CO-Ordinates of intersection of 2x+3y=12 and y=7-3x

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JP
Answered by Jakub P. • Maths tutor
4958 Views

Differentiate the function f(x) = (x^2 - 1)^3

Using the chain rule: f '(x) = (2x) (3) (x^2 - 1)^2 = 6x(x^2 - 1)^2
JB
Answered by James B. • Maths tutor
3851 Views

Explain synaptic transmission at a cholinergic synapse.

A synapse is a gap between neurons that allows communication between different neurons using chemical messengers or neurotransmitters . Let's start simple and describe the basic structure of the synapse; it ...
MM
Answered by Maaz M. • Biology tutor
9082 Views

How can I figure out the key of a piece?

When we discuss KEYS in music we must always look at one thing: the KEY signature. This is the bit on the first line, next to the clef (Treble, Bass, Alto or Soprano). You'll notice this as it will have Shar...
SC
Answered by Shaun C. • Music tutor
4125 Views

Let y = 4t/(t^2 + 5). Find dy/dt, writing your answer in it's simplest form, and find all values of t for which dy/dt = 0

We use the quotient rule to find dy/dt. Let u = 4t and v = (t^2 + 5). Then, u' = 4 and v' = 2t. Hence, dy/dt = u'v - v'u / v 2 = 4(t^2 + 5) - 4t x 2t / (t^2 + 5) 2 = 20 - 4t 2 / (t^2 + 5) 2 . Now, we need to...
JH
Answered by Jonathan H. • Maths tutor
4601 Views