Question

What is ​ BC ​? Enter your answer in the box.

Answer 1

BC in math is Binary Calculator
BC in years is before Christ.

In this case, the bc is 4(5) - 2.
Brainliest please!

Answer 2

Since the angles at the "base" are twins, namely B and C, that simply means the segments making them, are also twins, namely AB = AC, that makes the triangle an isosceles one.

and since AB = AC, then

$\bf \stackrel{AB}{8x-4}=\stackrel{AC}{5x+11}\implies 3x=15\implies x=\cfrac{15}{3}\implies x=5$

and since BC is 4x - 2, then 4(5) - 2.