20 x 20 = 400
4(1/2 x 20 x 30) = 1200
400 + 1200 = 1600
So, D
Answer:
-
Step-by-step explanation:
Given:
10 poker chips:
Let the stack has positions (1,2,3,4,5,6,7,8,9,10)
So we can find all possible outcomes of the stack is:
=
and the possibility of a stack to be identical while flipping is:
So the different 10-chip stacks can Dave make if two stacks are not considered distinct:
-
Answer:
Ray AC and Ray BC
Step-by-step explanation: