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disa [49]
3 years ago
12

30 points! Please help!

Mathematics
2 answers:
masya89 [10]3 years ago
6 0

Short Answer: n = 5
The chords bear the relationship  of (in this case)

18*(n + 1) = 9 * (n +7)         Remove the brackets 
18n + 18 = 9n + 63              Subtract 9n from both sides.
18n - 9n + 18 = 63
9n + 18 = 63                        Subtract 18 from both sides.
9n = 63 - 18
9n = 45                                Divide by 9
n = 45/9
n = 5   <<<<<<<< Answer

AysviL [449]3 years ago
5 0

Answer:

n=5

Step-by-step explanation:

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