Answer:
B 3
Step-by-step explanation:
We can use the secant-secant formula:
(whole secant) x (external part) = (whole secant) x (external part)
9 * 4 = 12 *x
36 = 12x
Divide each side by 12
36/12 =12x/12
3 =x
Should be 13. Sorry if I’m incorrect!
The numbers:
1, -3, 2, -9, 3, -15, 4, -21,
are not linear.
If it was linear:
4, 3, 2, 1, -3, -9, -15, -21
