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What conditions allow a firm to sell the same product at different prices?

Price discrimination is the sale of identical goods or services transacted at different prices from the same provider. It can only be a feature of a monopolistic market in which market power can be exercised...
LR
Answered by Lara R. • Economics tutor
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How should I write an essay introduction?

Your introduction should clearly indicate the text(s) you will be using in your essay. It should use key terms from the question and indicate what makes the texts you have chosen relevant to the question. It...
MM
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The circle c has equation x^2+ y^2 = 1. The line l has gradient 3 and intercepts the y axis at the point (0, 1). c and l intersect at two points. Find the co-ordinates of these points.

x^2 + y^2 =1 y = 3x + 1 x^2 + (3x + 1)^2 = 1 x^2 + 9x^2 + 6x+ 1 = 1 10x^2 + 6x = 0 x(10x+6) = 0 x= 0 or x = -6/10 = -3/5 When x = 0, y = 1 When x = -3/5, y = -4/5
PJ
Answered by Prince J. • Maths tutor
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How do you use SOH CAH TOA?

If you have a right angled triangle, it is made up of a hypotenuse, adjacent and opposite. In SOH CAH TOA, the middle letter goes up, so when we use the equation, it will be sin=opposite/hypotenuse, etc. If,...
KR
Answered by Katherine R. • Maths tutor
4983 Views

When do I use Sin, Cos or Tan?

You use these functions when you either have a length and an angle and you are looking for a length or when you have two lengths and are looking for an angle. There is a simple way to remember which one to u...
AC
Answered by Aaron C. • Maths tutor
13470 Views