3 years ago

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

Mathematics

1 answer:

sp2606 [1]3 years ago

4 0

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.

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