Let A = {5, {5, 9}, {9}, 0}. Answer each of the following questions. 1) |A| = =

Q: You are taking a true false quiz in another class with a total of 6 questions. How many different…

A: here given that class test have different types of options given in first case only two choices true…

Q: Bilal wants to go to Islamabad. He can choose from 33 bus services or 22 train services to head from…

A:

Q: Professor Tough's final examination has 17 true-false questions followed by 3 multiple-choice…

A: To solve this problem  (1) we find the number of ways to solve the true false questions . (2) we…

Q: So which multiple choice is it and what do we put in the blanks?

A:

Q: Professor Tough's final examination has 18 true-false questions followed by 3 multiple-choice…

A:

Q: A quiz consists of 6 multiple choice questions where each question has four choices. In how many…

A: Each question has 4 choices hence the answer can be chosen in 4 ways out of the given 4 options.…

Q: A seven-question quiz has 4 true/false questions followed by 4 multiple choice questions. For each…

A:

Q: In a batch of 500 high school students, there are 252 students who own a laptop, 176 students who…

A: Here we can use the formula nU = nA+nB-nA∩B+nA∪B'

Q: A group of friends have met at the park to socialize and play a game. Juan and Mary have been chosen…

A: There is group of 21 friends. Out of which Juan and Mary have been chosen as team captains.  Hence,…

Q: Liza is a basketball coach and must select 5 players out of 12 players to start a game. In how many…

A:

Q: A professor gives his students 6 essay questions to prepare for an exam. Only 2 of the questions…

A: The objective of this question is to find out the number of different exams that are possible given…

Q: Harry has to visit 10 cities. He can visit three in any one day, and the order in which he visits…

A: Combinations: The number of combinations of r items selected from n items is, nr=n!n-r!r! Harry has…

Q: Suppose 2 scholarships, $1000 each, is to be given to 2 students. There are 9 applicants. How many…

A: We have given information, There are 9 applicants, n=9. Suppose 2 scholarships, $1000 each, are to…

Q: After a service call by a plumber, the company follows up with a survey to rate the service and…

A: For yes/ no type questions:

Q: How many ways can you arrange the letter from the words PLEASE?

A: How many ways can you arrange the letter from the words PLEASE?

Q: Decide the number of possibilities of the given situation: Devin pressed 3 different numerical…

A: Combinations: The number of combinations of r items selected from n items is, nr=n!n-r!r! There…

Q: A teacher decided to buy breakfast for her students while welcoming them during the first day of…

A: Inclusion exclusion principle Let A, B be two events then the number of ways to get either A or B'…

Q: A party room has a circular table with 12 seats. A group of 4 people enter the room. How many…

A: In a circular table with n seats,  there are (n-1)! ways ofoccupying the seats

Q: Professor Easy's final examination has 12 true-false questions followed by 3 multiple-choice…

A: Answer is mentioned below

Q: If the average of 5 integers is 300, if the average of the first 2 integers is 100, and the the…

A: given: the average of 5 integers is 300. the average of the first 2 integers is 100. the average of…

Q: t says select ONE. There's only one correct answer.

A: X has normal distribution with mean =120 and standard deviation =15.That is X has N() distribution…

Q: Professor Tough's final examination has 20 true-false questions followed by 3 multiple-choice…

A:

Q: If a student is to answer any six problems on a test consisting of nine problems, in how many…

A: Here the student is free to answer any 6 questions out of 9 problems.  So, we take the combination.