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The nth term of a sequence is 7n-4. Write down the 4th term and the 10th term of the sequence. The first four terms of a different sequence are 9, 13, 17, 21. Find an expression for the nth term of this sequence.

The nth term of a sequence means that when we substitute the value of n in to the equation, we find that term. So to find the 4th term in the sequence, we substitute 4 in for n. 7(4)-4=28-4=24. The 10th term...
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Answered by Laura T. • Maths tutor
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Find the median, mean, and mode of the following set of data: 55, 43, 62, 91, 2, 43, 34, 16, 16.

To find the median, we first need to rewrite the set of data in ascending order of values: 2, 16, 16, 34, 43, 43, 55, 62, 91. We then count how many items are in this list. The median is the item in the midd...
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Answered by Laura T. • Maths tutor
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What is the difference between an ionic lattice and a metallic lattice?

Many elements readily form ions because their electron configurations are more stable if electrons are added or removed, usually in order to ensure that the outermost shell is a full octet. An ionic compound...
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Answered by Adam L. • Chemistry tutor
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Explain what is meant by a beanpole family 2 marks

A beanpole family is a multi-generational extended family, this means that there are many different generations within the family that have few siblings in each generation.
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Answered by Shania H. • Sociology tutor
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Evaluate the Working Model Of Memory 2 marks

One weakness is that little research has been done to understand the central executive, for example its capactity is still unknown. Furthermore, It cannot be falsified. One strength is that there is evidence...
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Answered by Shania H. • Psychology tutor
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