Answer:
60
Step-by-step explanation:
ABC is OBC:30
180-90-30=60
Hint: "4x 2 - 25 = 0" is nearly meaningless. You want 4x^2 - 25 = 0.
Note that both 4x^2 and 25 are perfect squares, so this is the difference of two squares, and is equal to (2x-5)(2x+5)= 0.
Answer:
rate this 5 stars or your gay
Step-by-step explanation:
Just do it