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julsineya [31]
2 years ago
15

Help will give Brainly points

Mathematics
1 answer:
Maurinko [17]2 years ago
3 0

Cos 45 = 7/x

0.707 = 7/x

x= 9.9

sin 45= 7/x

0.707= 7/x

x = 9.9

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Answer:

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Answer:

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Step-by-step explanation:

You can imagine that the shelf has 10 "slots" where you can place a book. Each slot can take 1 of the 10 books. However, after you have placed 1 book, there are only 9 possible books to place. After 2 have been placed, there are only 8 possible.

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Eventually, for slot 10, there is only 1 book possible.

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