Question

Say what now?! I don’t get this please help!

Answer 1

d. 16

Explanation:

AB and AD are tangents from external point A to the circle with center C.

Since, tangents drawn from external point to a circle are congruent.

`\therefore \: AB = AD \\ \therefore \: 7x + 4 = 3x + 68 \\ \therefore \: 7x - 3x = 68 - 4 \\ \therefore \: 4x = 64 \\ \therefore \: x = (64)/(4) \\ \huge \red{ \boxed{\therefore \: x = 16}}`

Answer 2

D)

Explanation:

7x + 4 = 3x + 68

7x - 3x = 68 - 4

4x = 64

x = 64/4

x = 16

I Hope I've helped you.