Answer:
simplifies to 
Step-by-step explanation:
Given expression 
We have to simplify the above expression,
Consider the given expression 
Multiply each term in brackets by
, we get,

Solving further, using
we get,

Thus,
simplifies to 
It is a combination, becasue the order does not matter
C (4,3) = 4! / [3! (4-3)!] = 4
Answer: A and C.
The total number of persons standing in the line waiting for ordering pizza are 5.
Explanation:
There are 5 people in total so the first place can be occupied by any of the 5 persons.
Secondly the second place in the line can be occupied by any of the 4 persons left.
Then the third place will be occupied by any remaining 3 persons as the front two places are already occupied.
Similarly the fourth place will be taken by any of the remaining two people. And lastly the last place will b filled by the last remaining person.
So the total number of ways will be 5*4*3*2*1 = 120 ways that is given in the question.
Answer:
<u>Candy | Number of People</u>
Chocolate 10
Hard Candy 13
Chewy Candy 9
Step-by-step explanation:
We want to create a table that will show the data from the graph above.
We just have to read the frequencies of the corresponding candies of the bar graph.
The height of the bars tell us the frequencies.
<u>Candy | Number of People</u>
Chocolate 10
Hard Candy 13
Chewy Candy 9
Answer: 3 and 4
Step-by-step explanation: I took the quiz