Answer:
should be 0.28125
Step-by-step explanation:
let me tell u I don't know so give me an complete thuought
Yes
I hope I helped you^_^
x = 19
(whole secant) x (external part) = (tangent)^2
(x-7+4) * 4 = 8^2
(x-3)*4 = 64
Divide each side by 4
x-3 =16
Add 3 to each side
x-3+3 = 16+3
