BC = 2(DF)
BC = 2(4)
BC = 8
answer
BC = 8
ANSWER
See below
EXPLANATION
We want to verify that,

To verify this identity, we can take the left hand side simplify it to get the right hand side or vice versa.





We now expand the right hand side to get:

Aⁿ means a times itself n times
a times itself 3 times means a³
Answer:
x≥4
Step-by-step explanation
24+4x≥40. Subtract 24 from both sides to get 4x≥16. Divide both sides by 4 to get x≥4.
Which one the on number 1 ?