Question 6 of 20 :Select the best answer for the question.6. Evaluate the determinant for the following matrix:1O A. 8O B.-2O C.5O D. -4O Mark for review (Will be highlighted on the review page)<< Prevlous QuestionNext Question >>C3.%24%23

Here in this question we have given a matrix and we have asked to find the determinant of this…

Question 6 of 20 : Select the best answer for the question. 3 -5 6. Evaluate the determinant for the following matrix: 1 O A. 8 О В. -2 O C.5 O D. -4 O Mark for review (Will be highlighted on the review page) « Prevlous Question Next Question >>

Question 6 of 20 : Select the best answer for the question. 3 -5 6. Evaluate the determinant for the following matrix: 1 O A. 8 О В. -2 O C.5 O D. -4 O Mark for review (Will be highlighted on the review page) « Prevlous Question Next Question >>

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Q1. The purpose of surrounding attributes with methods as a ‘wall’ in a class is a. better readability b. clear representation of a class c. information hiding d. easier understanding Q2 Which of the following describes about data flow modeling correctly? a. Data flow diagram depicts relationships between data objects. b. Data flow modeling represents how users interact with a software system. c. Data flow diagram indicates how data are transformed by the system. d. all of the above. Q3 Which of the following describes about behavioral modeling correctly? a. It represents functions that transform the data flow in a software system. b. It may indicate how a system responds to external events by changing its states. c. Both sequence diagram and statechart diagram can be used for this modeling. d. b and c. Q4 In data/class design, you need to consider different kinds of classes, including:…
A. Identify if it is an entity, attributes or instance. CONCEPT E / A / I President 1. Ella Fitzgerald 2. Dog 3. Animal 4. Height 5. B. Identify the following Attributes to which entities (GUEST, HOTEL, ROOM) it belongs. Write GUEST, if it belongs to the guest, HOTEL if it belongs to the hotel, and ROOM if it belongs to the room. Address 6. Arrival Date 7. Family Name 8. Room Number 9. Floor Number 10. Number of Beds 11. Number of Parking Lots 12. Rate/Price 13. Available number of TV 14. Contact Number 15.
[For this question, you can use a program such as Excel or Word (paste into the quiz, then format at needed), or use the table formatting tools in the Canvas Toolbar in the quiz question to create your matrix.] Using the scenario information, illustrate a factorial matrix with identifiers for each side of the matrix, and the variable identifications in each box of the table. The goal is that your reader should be able to visually see what you are researching based on the matrix table. Do not copy and paste the matrix from SPSS or other automatically generated format. You are to create the table manually. However, it does not need to be complicated. Simply identify a letter or code that illustrates your variables in the scenario, and be sure your reader knows what they mean. An example is provided below. The goal here is not that you produce a beautifully formatted table for this quiz, but that your information is clearly understandable to your reader, and correct to the scenario.…
If any of the following choices are applicable, please tick them. This model includes entities like as customers and accounts; employees; checks; and transactions. Using recursive relationships correctly, which of the following is the proper choice?(A) Checks drawn on a checking or savings account are referred to as "checks."Bank transactions that are both credit and debit belong to the same account, as do checks, and so do employees and their managers.
DATABASE : Please draw an EERD based on following description. Suppose that you are asked to model the human resources in a university. They consider three types of people: employees, student and alumnus. Employee has SSN, name, address, gender, date of birth, salary, and date of hire. And there is no other type of personnel in this university. Some employees are also alumnus. And also, some students are also employees. Students have SSN, name, address, gender, date of birth, and major department. Alumni have SSN, name, address, gender, date of birth, degree, and degree received date. Employees can be partitioned into two sub types: faculty and staff. Faculty has the specific attribute rank, while staff has the specific attribute position. An employee cannot be both faculty and staff at the same time. Two subtypes are also defined for students: graduate student and undergraduate student. Undergraduate student has the attribute class_standing, while graduate student has the attribute…
Q1: All the following statements about weak and strong entity sets are True, Except: Select one: a. The weak entity set depends on the existence of the strong entity set b. PK of the strong entity set is not explicitly stored with the weak entity set c. An entity set that does not have a primary key is referred to as a weak entity set d. In ER-Diagram, the identifying relationship of a weak entity in represented as a double diamond e. The PK of the weak entity set is only formed by the primary key of the strong entity set Below are two pictures, each with a second and third question
A candidate key exists for an attribute of a composite main key. What are your thoughts on this information?
76. Aggregation is which of the following? a. Expresses a part-of relationship and is a stronger form of an association relationship. b. Expresses a part-of relationship and is a weaker form of an association relationship. c. Expresses an is-a relationship and is a stronger form of an association relationship. d. Expresses an is-a relationship and is a weaker form of an association relationship.
For each of the following collection of entities, give the assumptions concerning the relationship between entities and attributes. EMPLOYEE(EMP_NUM, EMP_LNAME, EMP_INITIAL, EMP-DOB) DEPENDENT(EMP_NUM, DEP_NUM, DEP_FNAME, DEP_DOB)
A bank has three types of accounts: checking, savings, and loan. Following are the attributes for each type of account: CHECKING: Acct No, Date Opened, Balance, Service Charge SAVINGS: Acct No, Date Opened, Balance, Interest Rate LOAN: Acct No, Date Opened, Balance, Interest Rate, Payment Assume that each bank account must be a member of exactly one of these subtypes. Using generalization, develop an EER model segment to represent this situation using the EER notation. Draw an EER of this problem, you are free to use Visio, Draw.io, or others and include a screenshot below
Question 5 If all parameters need to be optimized, which of the models can use Goal Seek to optimize? Group of answer choices y=A⋅xB y=A⋅x+B y=A⋅x y=B⋅x+A Full explain this question and text typing work only thanks
Consider the following information for a company which wishes to keep track of certain information about itssales staff and its products and how the products are selling. Specifically, the company has determined that it isinterested in the following attributes.Employee ID Product NumberEmployee Name Product NameBase Salary Unit PriceCommission Percentage Quantity (of product sole)Department Number Office NumberDepartment Name Office SizeManager ID Office WindowManager Name After discussion with the company, it was determined that the following functional dependencies hold for theproposed database.Employee ID -> Employee NameEmployee ID -> Base SalaryEmployee ID -> Commission…