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What are the trade-offs with other macroeconomic policy objectives of a fall in the unemployment rate?

When answering an exam question such as this it is crucial to get down the key definitions, this also helps you when it comes to structuring an answer. For example, laying out the MEPOs in the introductio...

Answered by Charlie S. • Economics tutor

2666 Views

Solve the equation: x^2 +8x + 12 = 0

This is a classic GCSE-style equation :)
1) Always write out the original equation for clarity (and so that you don't have to look back at the question constantly) :)x^2 + 8x + 12 = 02) Notice that t...

Answered by Obaid U. • Maths tutor

4986 Views

Find the derivative of y = 3x^4 - 10x^2+7x

The method used to find the derivative (dy/dx) of the equation is to:

"Multiply the coefficient of x by the power then deduct the power x is raised to by 1"

Step 1: 3x^4

Answered by Hameedat O. • Maths tutor

3314 Views

Solve the simultaneous equations E.g. 2x + y = 18 and x − y = 6.

Simultaneous equations can be solved in many ways. The two main ways are "solving for x and y" and the other is "substituting for x and y". Because in this example we are given "...

Answered by Adil F. • Maths tutor

4512 Views

How do i use chain rule to calculate the derivative dy/dx of a curve given by 2 "parametric equations": x=(t-1)^3, y=3t-8/t^2

(Explain why it is called "parametric"). The definition of chain rule says that we can re-write the derivative dy/dx in terms of the "parameter t" by dy/dx = (dy/dt) X (dt/dx). (Expla...

Answered by Adil F. • Maths tutor

3660 Views