Answer:
3
Step-by-step explanation:
Answer:

Step-by-step explanation:
In a right triangle, the side adjacent angle a is 12, the
hypotenuse is 24.
Angle 'a' is 12
hypotenuse is 24


opposite side = 24 times sin(12)=5


adjacent side = 24 times cos(12)=23.5


Answer:
3BC
Step-by-step explanation:
8BC - 9BC + 10BC - 6BC = BC(8 - 9 + 10 - 6) = BC(3) = 3BC