Answer: 
Step-by-step explanation:
1. By definition, you have if
, then 
2. Keeping this on mind, you must follow the proccedure shown below:
- You have that:

Where:

- Substitute values into
. Then, you obtain:
Answer:
12,24,24
Step-by-step explanation:
60(.2)=12 that means the beginner is 12 trails leaving you with 80% left so you split it evenly each of the other 2 gets 40% of the total trails making it 24 and 24 to double check this you can add them up 24+24+12=60 which is true
Median is 36 I know but not sure about other
Answer:
53 degrees
Step-by-step explanation:
Angle N = angle E
because angle made by joining end points of same chord on circumference are always equal.
so angle E = 37
Angle D = 90 ( because angle made by diameter on circumference is 90 degrees)
Now in Triangle DEC. Sum if all the angles of triangle us 180
Angle D + angle E + ? = 180
37 + 90 + ? = 180
127 + ? = 180
? = 180 - 127
? = 53 degrees