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rjkz [21]
4 years ago
5

What is the value of x?

Mathematics
1 answer:
damaskus [11]4 years ago
7 0

Answer:

x = 19.

Step-by-step explanation:

By the tangent - secant theorem:

BD^2 = AB * EB

so:

8^2 = (x - 7 + 4) * 4

4(x - 3) = 64

4x - 12 = 64

4x = 64 + 12 = 76

x = 76/4

= 19.

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