The expression 3C2 represents the number of ways of:

a choosing 2 items at a time from a set of 3. c. arranging, in order, 2 items from a set of 3.

b. choosing 3 items at a time from a set of 2. d. arranging, in order, 3 items from a set of 2.

Option a.

Step-by-step explanation:

The given expression is  

C denotes combination and P denotes permutation.

means choosing r items at a time from a set of n.

means arranging r items at a time from a set of n.

The given expression is a combination, where n=3 and r=2. It means the given expression represents the number of ways of choosing 2 items at a time from a set of 3.

Therefore, the correct option is a.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

21

step-by-step explanation: