Answer:
ha
Step-by-step explanation:
haha thanks for the points!
Answer:
It is nCk = 8C4=70
Step-by-step explanation:
Use the combination formula for n = 8, k = 4
Answer:
17/2 pi
Step-by-step explanation:
Area of the whole circle is pi r², which is 9 pi
9 pi x 17/9 pi / 2 pi = 17/2 pi