Top answers


Was President Kennedy's foreign policy a complete failure?

This is quite an interesting question as there's some really solid material to argue either way. You'd probably want to focus on the more prominent events of Kennedy's presidency - Specifically: The Bay of P...
JC
Answered by James C. • History tutor
8694 Views

Find the stationary point of the curve y = -2x^2 + 4x.

Firstly, since we have a negative coefficient of x^2, we know we are looking for a maximum point. It is also always helpful to draw a sketch so you know what's going on. Whiteboard sketch. Now to find the st...
LJ
Answered by Luke J. • Maths tutor
6513 Views

The Curve C has equation y = 3x^4 - 8x^3 - 3. Find dy/dx.

The question is asking us to differentiate the equation y = 3x^4 - 8x^3 - 3. To differentiate this equation, we must differentiate term-by-term. In order to differentiate a term, we must multiply the coeffic...
DC
Answered by Dharmik C. • Maths tutor
7042 Views

Describe the structure and function of plasma membranes.

All plasma membranes are composed of phospholipids, cholesterol, proteins, glycoproteins and glycolipids. The structure of the membrane can be described by the fluid mosaic model, where phospholipids are arr...
MJ
Answered by Milly J. • Biology tutor
9521 Views

Briefly describe the working memory model. (4 marks)

The working memory model proposes that the short term memory isn't unitary, but is split into separate stores. One store is the central executive which is involved in attention and higher mental processes. T...
ES
Answered by Eve S. • Psychology tutor
28935 Views