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Explain the Carbon Cycle?

Carbon is removed from the air by plants during Photosynthesis as they need this to make energy. Oppositely, respiration takes in O2 and releases CO2 to the atmosphere. CO2 is also released in to the atmo...

Answered by Harkaram S. • Biology tutor

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Metals have high melting points. Explain, in terms of their structure and bonding, why metals have high melting points

How I would explain this to a student:"It is important to first know what the total marks for each answer is. 2 marks means the examiner requires 2 points. The question also states explain in terms o...

Answered by Esther A. • Chemistry tutor

5890 Views

Using differentiation, show that f(x) = 2x^3 - 12x^2 + 25x - 11 is an increasing function.

First compute the derivative of f(x) using the power rule on each term. f(x) = 2x^3 - 12x^2 + 25x - 11 so f'(x) = 6x^2 - 24x + 25. Now complete the square for the derivative. f'(x) = 6 * ((x-2)^2 - 4) + 2...

Answered by Michael T. • Further Mathematics tutor

2955 Views

3/5 of a number is 162. What is that number?

I would set up an equation where x is the number in question, like so:(3/5)x = 162I would then multiply both sides by 5 which would result in:3x = 1625 = 810Then, I would divide both sides by 3 t...

Answered by Luc B. • Maths tutor

3394 Views

GCSE To Kill A Mockingbird Question - Who are the mockingbird figures in the novel and what is their significance to the novel as a whole?

This is an example of how to structure a question in an exam.
INTRODUCTION:Time constraint in an exam means that you will need to write an essay that signposts exactly what your essay is about - you ...

Answered by Jemimah A. • English tutor

2334 Views