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Explain how an Act of Parliament is passed (12 marks)

The first stage in passing an Act of Parliament involves introducing a Green Paper (this contains tentative proposals for new law). The next stage is a White Paper (which contains firm proposals for a new...

Answered by Maxim P. • Politics tutor

3848 Views

Describe the sequence of events in DNA transcription

An enzyme called DNA helicase breaks the hydrogen bonds holding the complimentary base pairs together in a double stranded DNA molecule. This causes the DNA helix to unwind, exposing the unpaired bases. A...

Answered by Ellie M. • Biology tutor

3430 Views

How do I find the equation of the normal to the curve y=x^2 at the point (x1,y1)? Where x1=2 and y1=4 .

I would get the student to draw a diagram of the situation.. so draw the curve y=x^2, the tangent at (2,4) and then the normal. Then I would highlight to them that the equation we want is the equation of ...

Answered by Mohammad M. • Maths tutor

4308 Views

What does differentiation actually do?

Differentiation allows you to find the rate of change of a variable relative to another, which is basically the gradient. So if you had a speed-time graph, finding the amount that speed changes over a giv...

Answered by Kourosh S. • Maths tutor

3710 Views

Find the equation of the tangent to the circle x^2 + y^2 + 10x + 2y + 13 = 0 at the point (-3, 2)

First, what is a tangent? A line which touches a circle (or ellipse) at just one point. In our case (-3,2)
As it touches the line at one point, it is perpendicular the radius at (-3,2). Which implies...

Answered by Patrick D. • Maths tutor

6414 Views