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At x=3, is the polynomial y= (4/3)x^3 -6x^2 + 11 at a maxima or minima?

First, take the first differential: y' = 4x^2 -12x. At x=3 y'= 0 so therefore the function is at a point of inflection. Taking the second derivative: y'' = 8x -12. At x=3 y''= 12. As 12 is greater than 0,...

JT
Answered by James T. Maths tutor
3571 Views

What factors influence the reaction rate?

There are 5 main factors that affect the rate of reaction. 1. Concentration: Increasing the concentration increases the frequency of collisions between particles. 2. Surface Area: Increasing the surface a...

JT
Answered by James T. Chemistry tutor
2819 Views

Explain how the structure of RNA differs from that of DNA? (3 marks)

RNA is single-stranded, DNA is double-stranded.

RNA contains the base Uracil, DNA contains thymine instead.

RNA contains the sugar Ribose, DNA has Deoxyribose instead.

HM
Answered by Haider M. Biology tutor
20418 Views

Outline and evaluate the economic effects of a fall in the value of the dollar?

As this question is asking you to ‘Outline and evaluate’, this question needs to be answered in two sections. The first section of the essay will provide examples of economic effects as a result in the fa...

TL
Answered by Tania L. Economics tutor
2461 Views

Differentiate ((x^2)+1)^2

To differentiate this, we use the power rule and the chain rule. First we differentiate the outside part, which equals 2((x^2)+1). However, because the inside of the square is a function, we have to diff...

AC
Answered by Adrian C. Maths tutor
6747 Views

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