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Differentiate: 6x^2 + 5x +7 =y

6x^2 + 5x +7 =y

dy/dx = 12x + 5 

To solve for a point of inflection:

dy/dx = 12x + 5 = 0

x=-5/12

y=143/24

JH
Answered by Jack H. Maths tutor
4848 Views

Why, in a thermal flask, does having a vacuum layer help keep the coffee warm?

Heat is transferred by 3 processes, conducation, convection and radiation. Having a vacuum layer stops heat being transferred away from the coffee by conduction. Conduction works by air molecules bumping ...

BO
Answered by Benjamin O. Physics tutor
3311 Views

Explain why an atom has no overall charge

Atoms are made up of three different types of particle. Protons and neutrons exist in the nucleus, while electrons orbit.

The relative charges of these particles mean that protons are positive whil...

SK
Answered by Salko K. Chemistry tutor
8055 Views

What is the "Subjunctive"? And when should it be used?

The subjunctive is what's known as a "mood", which merely means that it's used in a different way to "normal" (indicative) verbs. That is, in most cases, to express an element of doubt...

AH
Answered by Alexander H. Latin tutor
2455 Views

Define, with examples, the definition of proportional representation (5 marks).

Proportional representation refers to an electoral system in which the percentage of seats won by a given political party in a legislative election corresponds to their share of the vote. For example if t...

DA
10602 Views

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