khilty05
khilty05 khilty05
  • 15-07-2020
  • Mathematics
contestada

What is the value of x?

What is the value of x class=

Respuesta :

PollyP52 PollyP52
  • 15-07-2020

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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