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BlackZzzverrR [31]
3 years ago
10

Does anyone know what is the value of x

Mathematics
1 answer:
ANTONII [103]3 years ago
4 0

Answer:

7.5

Step-by-step explanation:

By intersecting secants theorem:

12(12 - x) = 6(6 + 3) \\  \\ 12(12 - x) = 54 \\  \\ 144 - 12x = 54 \\  \\ 144 - 54 = 12x \\  \\ 90 = 12x \\  \\ x =  \frac{90}{12}  \\  \\ x = 7.5

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