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Solve the inequality x^2 - 9 > 0

This is a quadratic inequality, because we have an x 2 term, so we answer this question by examining the graph of the associated equation y = x 2 - 9, and then find out where this graph is greater than 0.So ...
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Answered by Rose H. • Maths tutor
18062 Views

For my oral exam in French, how do I put forward my ideas concisely?

When looking at the topic and the question in the card you will receive 5 minutes beforehand, think about everything you know on the subject and select peculiarities or the most relevant issues that you know...
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Answered by Morgane S. • French tutor
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Steve, a novice gardener, plants sunflower seeds into small pots. He does not water them and is upset that they have not grown a week later. Explain why water is needed for the germination of a seed and what other conditions are required also and why

Preparation: This is a complex question requiring several strands of knowledge. It is best to break down the question into smaller chunks and answer each of those, to gain maximum marks. Firstly, knowing wha...
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Answered by Simran D. • Biology tutor
2197 Views

Outline the effects of a lump-sum tax on companies selling cigarettes and who ends up bearing the burden of the tax. You should assume that there was previously no taxation in this market.

A lump sum tax is a specific tax, it is a fixed amount charged to producers which can then be offset onto consumers. It is characterised as being the same amount of tax charged across all income levels, for ...
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Answered by Xena V. • Economics tutor
4508 Views

Given that 7/9 = 0.77777777 (recurring) convert 0.27777777(recurring) into a fraction. Give your answer in the simplest form.

if 7/9 = 0.777777 then 0.0777777 must be equal to 7/90 as it is a tenth of the original number. 0.2= (2/10)(7/90) + (2/10) = 0.27777777 find the lowest common multiple: 90, then make the denominators of each...
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Answered by Nial K. • Maths tutor
6141 Views