I think the mean of variable a is 4
It is hard to see but the first one is 243xy^6/5
Answer:
BCD = 60
ABD - 90
Step-by-step explanation:
BCD)
BC and CD are the same length on in the circle, they are the radius. Therefor, all angles will be the same at 60
ABD)
All angles together are 180
You know 2 Angles, A at 30 and D at 60
180 - 30 - 60 = Angle B
90 = Angle B
Your answers either A or B but im leaning more towards A
: ) have a nice day
