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Why is anything to the power 0 equal 1?

This is often overlooked as no-one gives a reason to why this is and is often stated as a fact. We start off with the basic indice law of x y * x z = x y+z . For example, Likewise with division, you can have...
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Answered by Pavit B. • Maths tutor
6128 Views

What is the difference between a scalar and a vector?

As often described, a vector is a quantity that has a magnitude and a direction, whereas a scalar just has a magnitude. The easiest way to thing about it is to physically think if you could point in a direct...
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Answered by Pavit B. • Physics tutor
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To what extent did the two world wars change the status of women in Britain?

This is a wide-ranging question and should be considered carefully. The words 'to what extent' mean that you need to explore both how the wars did AND how they did not change the status of women in Britain, ...
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Answered by Sérina G. • History tutor
5382 Views

How do I use the imperfect in French?

In French, the imperfect is used to describe a scene (il FAISAIT beau), to say that you did something regularly in the past (je MANGEAIS un burger toutes les semaines) or to describe a continuous action in t...
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Answered by Sérina G. • French tutor
4024 Views

Given that your grade for your computing is based on 5 coursework that weigh differently, and you know the results of 4: 80, 75, 50 and 90 which weighs 10%, 20%, 45% and 5%. What grade do you need in your last coursework to achieve at least a B (70%)?

You know the following: A) 80, 10% B) 75, 20% C) 50, 45% D) 90, 5% E) X, (100-10-20-45-5)% = 20% Therefore, create a formula with the facts given and the mean marks must be at least 70. Note that 10% is equi...
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Answered by Chen Z. • Maths tutor
4900 Views