Question

HELP ME I WILL GIVE BRAINLISET PLEASE DON'T IGNORE HELP ME WITH 11 AND 13

Answer 1

Answer:

11.  x = 3 and BC = 8.

Step-by-step explanation:

FA = 2BC so

3x + 7 = 2(3x - 1)

3x + 7 = 6x - 2

-3x = -9

x = 3

and BC = 3(3) - 1 = 8.