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y = 4x/(x^2+5). a) Find dy/dx, writing your answer as a single fraction in its simplest form. b) Hence find the set of values of x for which dy/dx < 0

a) We need to differentiate this equation using the quotient rule (Given that it is a fraction with an x term on both the top and bottom of the fraction). We assign the numerator and denominator as follow...

Answered by James F. • Maths tutor

8002 Views

To what extent is online retailing essential to a firm’s success?

On the one hand, online retailing is essential to a firm’s success, as seen by Amazon’s rise to being one of the world’s largest businesses. Online retailing often reduces a business’ costs, as there is l...

Answered by James W. • Business Studies tutor

2012 Views

Con el uso de ejemplos, da tu opinión sobre las películas de hoy

Intro: Hoy en día, el cine es una parte esencial de la vida cultural de un país -nuevas maneras de pensar y de considerar aspectos de la sociedad moderna Las películas de Hollywood:-el genero más popular ...

Answered by Francesca V. • Spanish tutor

3285 Views

What tenses can the 'If' clause followed by Present Indicative trigger?

There are essentially 3 different types of 'If' clauses that you will ever need in Spanish.The first one is when the 'Si' clause (Spanish 'If' clause) is used to describe a situation that may well be fulf...

Answered by Yasmin B. • Spanish tutor

1930 Views

Explain the use of the regular present subjunctive in French

The subjunctive mood is used in a variety of different circumstances. It’s important to remember that it is a mood, not a tense. This means it can be used in different tenses. First, let’...

Answered by Priya R. • French tutor

1584 Views