Top answers

Find the stationary points on y = x^3 + 3x^2 + 4 and identify whether these are maximum or minimum points.

Differentiate wrt x. This leaves dy/dx = 3x^2 + 6x and equate this to 0 as we are looking for stationary points.So, 3x^2 + 6x = 0. Factorise to get x(3x +6) = 0. So x = 0 and x = -2 are the two solutions.Now...
TD
Answered by Tutor169411 D. • Maths tutor
3439 Views

Describe the structure of a protein and how it determines its function.

The primary structure of a protein consists of a sequence of amino acids joined together by peptide bonds. This is known as a polypeptide chain, which undergoes the most basic level of folding in the shape o...
KB
Answered by Khuzaima B. • Biology tutor
3726 Views

To what extent is an increase in taxes an effective way to correct a negative externality of consumption in the case of tobacco.

Negative externality of consumption is a type of market failure in which Marginal Private Benefit (MPB- the demand of consumers at present situation) is higher than Marginal Social Benefit (MSB- the demand o...
E
2689 Views

Vous écrivez un article sur la qualité des collèges en Grande-Bretagne pour un magazine français. Décrivez : • pourquoi votre collège est un bon collège • un événement scolaire mémorable.

Moi je vais au collège dans une ville qui s’appelle Richmond; le collège s’appelle SFX et j’y vais depuis 2013. Personnellement, j’aime bien mon collège! Je trouve que les professeurs sont très sympas, et qu...
SS
Answered by Suraj S. • French tutor
4138 Views

Explain, in terms of atoms, why steel is stronger than iron.

In iron, all the atoms are of the same size so the layers can slide past each other. In steel, there are both carbon and iron atoms which are different sizes, meaning the layers are disrupted and cannot easi...
AR
7074 Views