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A gardener uses this formula to work out how much he charges to make a lawn. C = 7(14 +A)/ 3. C is the charge in £. A is the area in m2. He makes a rectangular lawn measuring 12.5 m by 17.6 m. How much does he charge?

Area of lawn = 12.5 x 17.6 = 220 m2 Substituting into the formula given the cost if found, C = 7(14 + 220)/3 = £546
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Answered by Kitty S. • Maths tutor
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How do I find f'(x) for f(x)=4x^3+x^2+5x+8?

This question require you to differentiate. The general rule for this format of differentiation is to multiply the number in front of the x by the power of the x and then reduce the power by one (in formula ...
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Answered by Naomi C. • Maths tutor
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What is the structure and function of neurones?

Neurones are nerve cells that carry information as tiny electrical signals. There are three different types of neurones, each with a slightly different function: sensory neurones carry signals from receptors...
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Answered by Bex M. • Biology tutor
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What is the difference between the preterite and the imperfect in Spanish

Spanish has two past tenses, the preterite and the imperfect. The difference between them can be hard to grasp. Generally speaking the preterite is used for actions in the past that are seen as completed. Fo...
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Answered by Jamie V. • Spanish tutor
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What's the difference between Plato and Aristotle's view on the soul?

Plato had a dualist notion of body and soul. His ideas were wrapped up in his theory of the Forms, as he believed that the soul was the only thing that mattered, and that the body was a hindrance to it, goin...
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