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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) + 25 =...
MT
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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 = 162 5 = 810Then, I would divide both sides by 3 to isolate ...
LB
Answered by Luc B. • Maths tutor
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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 will sta...
JA
Answered by Jemimah A. • English tutor
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Describe Atkinson and Shiffrin's Multi Store Model of Memory

The model centres around the concept of memory having three distinct components, the sensory register, the short-term memory (STM), and the long-term memory (LTM). These components are sequential with differ...
OO
Answered by Olivia O. • Psychology tutor
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Wie kann man umweltfreundlich reisen?

Zurzeit gibt es viele Umweltprobleme wie Luftverschmutzutzung, Treibhauseffekt und Plastikmüll. Ein großer Teil dieser Probleme war durch Reisen verursacht. Besonders Fluchtzeuge und Autos, die zwei Hauptver...
AE
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