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Gelneren [198K]
3 years ago
14

Thirty-one books are arranged from left to right in order of increasing prices. The price of each book differs by $2 from that o

f each adjacent book. The price of the book at the extreme right is equal to the price of the middle book plus a book adjacent to the middle one. Give an expression for the cost of the $n$th book in terms of $n$
Mathematics
1 answer:
user100 [1]3 years ago
6 0
The answer for this problem is 2 since it is not specified whether it is adjacent to the right or adjacent to the left.
If it is adjacent to the right, the answer is:

p (k) = 2 * p(1) + 2 * k

If the is adjacent to the left, the answer is:

P (k) = 2 *p(1) +2 * (k-2)
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<h3>"The answer is the yellow lines in the attached figure. </h3>

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We are to find the line across which the combined figure will reflect onto itself.

In the attached figure, we see two lines which are yellow in colour. We can easily detect that the figure will be reflected onto itself if these two lines acts as a mirror separately.

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<h3><u>Hope this helps!</u></h3>

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Step-by-step explanation:

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Arisa [49]


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