Please help me out I don’t understand I’ll give more if right

Mathematics

1 answer:

aksik [14]3 years ago

7 0

Answer:

x = 15.

Step-by-step explanation:

We apply the tangent-secant theorem:

18^2 = 12(12+x)

324 = 144 + 12x

12x = 324 - 144 = 180

x = 180/12 = 15.

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