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Find two solutions to the quadratic equation x^2 + 2x - 15 = 0

Firstly, we need to find two numbers that multiply together to make -15 and sum together to make +2. We try a few numbers and find that the solution is -3 and 5, as -3 x 5 = -15 and -3 + 5 = 2.Next you input...
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Answered by James G. • Maths tutor
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How can religion lead to Social Change?(10 marks)

Bloch argued that religion could lead to social change because it had the ability to inspire protest and rebellion. Item A says “religious beliefs can sometimes lead believers to act in ways that have unfore...
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Answered by Erina L. • Sociology tutor
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'The Aeneid is a poem of Augustan propaganda.' How far do you agree with this statement? (Essay question)

In tackling this essay, I would recommend that the student think first of the main instances of Augustan propaganda within the Aeneid: Jupiter's speech in book 1 talking about the future of Rome, Anchises' s...
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What are the key features of eukaryote DNA?

DNA, or deoxyribonucleic acid, is a doubled-stranded helix made up of nucleotides. Each nucleotide has one of four bases attached to it. The bases of the nucleotides of one strand base pair to the compliment...
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Answered by Jess T. • Biology tutor
2872 Views

Why does light change direction when it hits a surface with a different refractive index?

The path upon which light propagates is determined by Fermat's Principle. This says that light will always travel along the path of least time. Now, we often think of the speed of light as a constant, but th...
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Answered by Ben G. • Physics tutor
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