
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Click and drag the steps to show that at least three of any 25 days chosen must fall in the same month of the year.

Transcribed Image Text:There will be 3.12 = 36 chosen days in 12
months.
Hence, three chosen days must fall in the
same month.
Then, there will be at most 2.12 = 24
chosen days in 12 months.
This contradicts the assumption that we have
25 days.
Assume there were at most three chosen
days falling in the same month.
Assume there were at most two chosen
days falling into any one month.
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 3 steps with 1 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.Similar questions
- Dextra Computing sells merchandise for $6,000 cash on September 30 (cost of merchandise is $3,900). Dextra collects 5% sales tax. Record the entry for the $6,000 sale and its sales tax. Also record the entry that shows Dextra sending the sales tax on this sale to the government on October 15.arrow_forwardReplace all the 0 (Zero) digits in your ID by 4. Example: If your ID is 382200448 , it becomes 382244448 Take the first 6 digits and substitute them in this expression (( A + B) / C) * ((D-E)/F)-2) according to the following table; [1 mark] Letter Replace by Digit Example Digit A 1st 3 B 2nd 8 C 3rd 2 D 4th 2 E 5th 4 F 6th 4 After substitution your expression ? Draw a rooted tree that represents your expression. [3 marks] What is the prefix form of this expression. [3 marks] What is the value of the prefix expression obtained in step 2 above? [3 marks]arrow_forwardProgram to find day on a particular datearrow_forward
- Output the information in a formatted table. The title is right justified with a width of 33. Column 1 has a width of 20. Column 2 has a width of 23. Ex: Number of Novels Authored Author name | Number of novels -------------------------------------------- Jane Austen | 6 Charles Dickens | 20 Ernest Hemingway | 9 Jack Kerouac | 22 F. Scott Fitzgerald | 8 Mary Shelley | 7 Charlotte Bronte | 5 Mark Twain | 11 Agatha Christie | 73 Ian Flemming | 14 J.K. Rowling | 14 Stephen King | 54 Oscar Wilde | 1arrow_forwardClick cell C9 and insert a VLOOKUP function that looks up the code in cell B9, compares it to the codes and types of art in the range B2:C6, and returns the type of art. Copy the function in cell C9 to the range C9:C54. Hide column B that contains the codes.arrow_forwardNEED HELP WITH PYTHON CODE. ALSO, PLEASE PROVIDE DETAILS SEPARATELY ON HOW AND WHAT DID U USE TO GET UR CODE DONE.arrow_forward
- Answer in R code pleasearrow_forward10010110 (Excess-M binary number) = (base 10)? You need to type in the calculation steps or insert the picture of your handwriting using "insert" menu above.arrow_forwardIn [ ]: Exercise 1b Write code to calculate and print the quantities from the data sheet. For the momenta pli and p2i, the code is given. For the other quantities, uncomment the respective code lines and add your own code. You must use the given variable names; do not change their case (e.g. from Kli to kli). For full credit: • Use "f-strings" to print your calculated values. • Make sure each quantity is printed with its correct unit. Follow the example for pli. Verify that your code produces sensible results. pli m1*vli p2i = m2*v2i print (f'Momentum of m1 before collision: print (f'Momentum of m2 before collision: #pi #mtot = # pf #p_ratio= #print() #print () #print() #print () = = # Kli = # K2i = #print() # print () #Ki = # Kf = # K ratio = #print () #print() #print () # Momentum of m1 before collision #Momentum of m2 before collision #YOUR CODE HERE raise NotImplementedError() {pli:eP} kg•m/s') {p2i: eP} kg•m/s') # Total momentum before collision # Combined mass #Total momentum…arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- Database System ConceptsComputer ScienceISBN:9780078022159Author:Abraham Silberschatz Professor, Henry F. Korth, S. SudarshanPublisher:McGraw-Hill EducationStarting Out with Python (4th Edition)Computer ScienceISBN:9780134444321Author:Tony GaddisPublisher:PEARSONDigital Fundamentals (11th Edition)Computer ScienceISBN:9780132737968Author:Thomas L. FloydPublisher:PEARSON
- C How to Program (8th Edition)Computer ScienceISBN:9780133976892Author:Paul J. Deitel, Harvey DeitelPublisher:PEARSONDatabase Systems: Design, Implementation, & Manag...Computer ScienceISBN:9781337627900Author:Carlos Coronel, Steven MorrisPublisher:Cengage LearningProgrammable Logic ControllersComputer ScienceISBN:9780073373843Author:Frank D. PetruzellaPublisher:McGraw-Hill Education

Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education

Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON

Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON

C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON

Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning

Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education