elizabeththomas10 elizabeththomas10

08-06-2020
Mathematics

contestada

What’s the correct answer for this?

Whats the correct answer for this class=

Respuesta :

ujalakhan18 ujalakhan18

08-06-2020

Answer:

A:

Step-by-step explanation:

Using tangent-secant theorem

AE²=(EC)(ED)

12²=(8)(8+x+10)

144=8(x+18)

144=8x+144

8x = 144-144

8x = 0

So

x = 0

Now

ED = 8+x+10

ED = 8+0+10

ED = 18

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