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Databases Questions and Answers January 06, 2021

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Q.1. Suppose in the hierarchy of animal classes (see Fig 1) you forget to define the Zebra class. Now you have to add it after all the classes are created. How can you create the Zebra class in the best possible way to avoid redundancy and what do you think is the worst case of the Zebra class creation? (Hint: Zebra is similar to Horse in
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please help with answering this question asap! 14. Let f: R R be defined by f(x) = x2. For each of the following subsets B of R, find f-1(B). a) B = {0, 1} c) B= [0, 1] e) B = [0,4] b) B = {-1,0,1} d) B = [0, 1) f) B = (0, 1] U (4,9)
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A(n) ______________ refers to a combination of hardware, software, and telecommunications networks that people use to collect, analyze, and distribute useful information in organizations. a. database b. information system c. information technology d. Web browser Referring to Clayton Christensen's the article. The Rules of Innovation, which of the
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Assignment Instructions: 1) Consider the instruction slt, which has the format: slt $rd, $rs, $rt. a. The instruction sets $rd to 1 if and only if $ i. Provide an informal RTL (register transfer language) describing the instruction semantics ii. Explain the way that the instruction is mapped into Figure 4.24 from the book by Patterson (below). 2)
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What is CCB? Enlist the main responsibilities of Project CCB.

Question 3 ( 1 point ) Iteration, also known as looping, allows you to repeat a series of steps ov and over. True False
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in python. use user input. question is asking to create a function that generates a random list each time based off how many sides and how many dice the user wants. once the list is made it needs a function to add the sum of the dice rolled and average of the numbers Part 4 Create a new function named my_sun that returns the sum of a list of
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In the Customer Balance Display screen, what is the top field called? What is the second field in the screen called? What is the third field in the screen called? What does the / n command do ? What is the transaction code for the Customer Balance Display screen? Why is the SAP menu button helpful? Why is typing a transaction code into the field

2. Problem 5-2: Assume that a sample alphabet has the following weights: Letter QZ FM T SO E Frequency 23 10 10 10 15 20 30 For this alphabet, what is the worst-case number of bits required by the Huffman code for a string of n letters? What string(s) have the worst case performance? a) b) For this alphabet, what is the best-case number of bits
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Several activities ( or phases ) are involved in the requirements engineering life - cycle. These activities are listed below. Place each activity in the position that represents it's order in the requirements engineering life - cycle. 4 1
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May I please know how to program this question in python step by step? Thank you You are to write a function called arrange. Your function will reorder a given list, where even indexed elements are arranged by descending order (based on index order) from 0 to n/2 of the list and odd indexed elements arranged in ascending order from (n/2) + 1 to n
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create a Coin class with instance variables private String name (like nickel), private double value (like .05), and private double weight (like 5 grams) and a 3-parameter constructor to set all of them, and have that class implement Comparable : The class has the single constructor mentioned above plus setters for all three instance variables; you

How many relationship types ( unary , binary, and ternary altogether ) with modality 1 ( or mandatary participation ) from both participating entity types in the ERD?

This project assumes that you have completed Project 1. Place several Student objects into a list and shuffle it. Then run the sort method with this list and display all of the students information. Note: The sorted list should be output in the following format Sorted list of students: Name: Name1 Scores: 0 0 0 0 0 0 0 0 0 0 Name: Name2 Scores: 0

You are the forensics investigator and you need to capture the data packet from an employee Bob, how will you analyze these data packets? Please list the steps. (OSI model: Ip address, TCP, UDP,, Application layer)

IN JAVASCRIPT/ HTML5 Write a script based on the program in Exercise 11.13 that inputs several lines of text and uses "String" method "indexOf" to determinethe total number of occurences of each letter of the alphabet in the text. Uppercase and Lowercase letters should be counted together. Store the totals for each letter in an array, and print

Can a greedy algorithm be used to solve all the dynamic programming problems? and why ?

4. Explain how you would determine how much profit was generated from orders placed in April 2009. 5. If a customer inquired about a book written in 2003 by an author named Thompson, which access path (tables and fields) would you need to follow to find the list of books meeting the customers request? Figure 1-5. CUSTOMERS Customer# Lastname
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Python GUI application using Tkinter Please help me solve this project. The project folder and the steps are available on the following link: https://selfpaced.bitbucket.io/#/python/assignment/turtle-behavior Thank you for your help! Project 3: Turtle Behavior proj3.zip Background The field of Artificial Life is, shall we say, alive and well! The
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Non-blocking Switch Debounce question Implement and test non-blocking switch de-bouncing. The program will use the Teensys 8-bit timer in normal mode, with overflow interrupt handling. You will implement a timer overflow interrupt handler which will sample the state of a designated switch at uniform intervals, and from these measurements determine
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2. Text enclosed in /* */ in a C program _________. a. gives instructions to the processor b. declares memory requirements c. makes files available d. causes a syntax error e. is ignored by the C compiler 5. Which of the following is not a floating point data type in C? a. float b. double *c. long d. long double e. none of the above 6. A ______

What are defini ons / meanings of the term framework ?

CSMA / CD is used by all Ethernet Wireless Networks True False
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The S-parameters of a transistor measured at 1 GHz are given below (Zo at both ports is 50 (2) 1. Is this network lossless, reciprocal? 2. Calculate the input impedance if the 2nd port is loaded by 20-j52 Ohm (hint: L4-40). 3. Design a microstrip matching network (using series line and open shunt stub) to match this input impedance to 50 N using
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Segment E: b) log3 4+log3 n 5n log,n 6n12 Dominant term: 5n log4n Big O complexity: O (n logn)* Justify: Segment F: Dominant term: n54 Big O complexity: O (n5). Justify: Segment G: Dominant term: ns4 Big O complexity: O (n5)+ Justify
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Create a table of values for f(x)=((1)/(3))^(x)-1 uarry

5) Convert the following BNF to EBNF: begin end | ; = A | B | C + | - |

You can use wildcards, bounded wildcards, or lower - bound wildcards to specify a range for a generic type. static bounded unbounded generic
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I need to implement remove part in bst. In this piece of python code. I understand that there are four or three cases such as root; right Child or left child or both child. When we remove we still have to keep balanced property of bst. I am having problem implementing it. And call it in driver class. Thank you for help. class BST: class Node: def
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This needs to be done in JAVA Do Programming Project 1. from Savitch 6e page 54. Follow the coding example of Display 1.8 p. 47 for programming style. You may add additional comments as you feel may be helpful. Create a simple flow chart to represent the design of your program. Take note that this would be a program that would benefit from the use
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Write a program with a function named convert_temp: The function takes the address of a variable of type double and applies Centigrade-to-Fahrenheit conversion. A variable that contains a Centigrade temperature should, after the function is called, contain the equivalent Fahrenheit temperature. Test the func- tion. (Hint: The relevant formula is F

You work for an online baseball card reseller and store data about each of your sales items offline. Which of these features would let you upload a CSV file that contains item data to join with Analytics data

For each of the following code, state the big O asymptotic notation of its running time as a function of n: m=1; for (j=1; j
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Please explain how to fix this error on row 28 thank you, Fatal error: Uncaught Error: Call to a member function fetch assoc() on boolean in
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solve tiple choice 1. Hard drives are classified as which type of storage? a. Volatile b. GPU c. Nonvolatile d. Cache 2. When would you want to consider RAID 1 technology? a. When you need the fastest solution for writing data b. If you think that SSDs are too expensive c. When you need an instant backup of your work d. When you want to have only
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Write a Python program that reads the below string: On the day of an equinox, daytime and nighttime are of approximately equal duration all over the planet And performs the following Outputs the length of the sting Outputs the first and last six characters Removes the 8th character and prints the rest of the string up to 20th character Prints the

Now that we've reviewed basic indexing, let's discuss how we can modify dataframes. We'll do this via a series of exercises. Question 1 a For a DataFrame d , you can add a column with 'new column name'
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what is the advanage of layer of OSI in term of cybersecurity

Using the Java API Documentation, try to find the Rectangle class inside java.awt package. Then, figure out if there is any method in Rectangle class for setting its location, i.e. the values of x and y coordination, as well as the values of width and height of a given Rectangle object.

Which of the following technique is NOT appropriate when handling imbalanced class problem?

Can someone please help me "Current Logical Network Model" for my Risk Assessment project at Community College with brief explanations. Thank you very much!

Create a C program to calculate the degree classification for users at an institute in certain country. The program should meet the following requirements: (a) Display a welcome message on the computer screen (2 marks) (b) The number of modules used for the degree classification calculation is 10 in total. Read each module mark ( x ) one by one,
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Building a Complex Query Using a Multi-Way Join Create a report using a multi-way inner join, which produces the total of the 2011 sales figures for each Orion Star employee. The report should be titled 2011 Total Sales Figures and must include both the managers and employees names (displayed as first name followed by last name), and the total

1. Practice using class methods 2. Practice using class variables 3. Practice object-oriented programming 2 Tasks 1. Create a Java project called DiceRoll. 2. Create a class inside your project called Dice. 3. Create a class inside your project called Roll. 4. Create a class inside your project called Main. 5. Add the following two attributes to

In a habitat, there are lions, jaguars and cheetahs, where these three species are competing with each other. The effects of each species on the others are given in a matrix. $$ \mathrm{q}=[10.20 .15 ; 0.1510 .15 ; 0.40 .151] $$ You should use the following information for the rest of this question. $\begin{array}{11111}\text { Species } & \text {
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Solve the following problem. Show all your work. Company X is conducting a survey on their redesigned spinning drives. They need to compare the performance of the new drives to current solid - state drives with basic configuration. Given the booting times ( in seconds ) for computers running Windows 1 0 . Answer the following questions: Booting

Suppose we have the following three relations: STUDENT (STUDENT_ID, STUDENT_NAME, STUDENT_AGE, STUDENT_ADDRESS) BOOK (BOOK_ID, BOOK_TITLE, BOOK_AUTHOR) BUY_BOOK (STUDENT ID. BOOK ID. BUY_DATE) Now, consider the following SQL query: SELECT S.STUDENT_ID,B.BOOK_ID, S.STUDENT_ADDRESS FROM STUDENTS, BOOK B, BUY_BOOK BB WHERE S.STUDENT_ID =
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Use command line parameters, function pointers and C library string functions, and create a Makefile Mandatory file names: lab3p2.h lab3p2.c lab3p2f1.c lab3p2f2.c lab3p2f3.c Makefile This program should execute the following command entered at the command line: % lab3p2 func_type string1 string2 where the three possible func_types are: func_type

Find the x-and y-int iarcects 2x-7y=10

21) 45mod10=515mod10=53mod10=3100mod10=023mod10=3 Assign these values in the array below using LINEAR PROBING
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obtener la derivada parcial con respecto a x de z= (90)/(4+x^(4)+y^(2))

Which of the following sentences does NOT contain a weak expletive? a ) It is advisable to wear sun protection when working outdoors. b ) Many vendors are currently active in the province. c ) It is not expected that we pay immediately. d ) There are two fire exits east of the lab

5 4 3 2 7 2 . 2 3 5 9 1 7 2 . qx 3 zqy 7 Jump to level 1 The surface area of a cube is given by cube _ area = 6 . 0 * * c u b e ? side e 2 . Read cube _ side from input as a float and compute cube _ area using the formula. Ex: If the input is 2 . 3 0 , then the output is: 3 1 . 7 4 Note: cube _ side ? 2 can be computed using * . 1 2 ' " ' Your
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please answer.................................... Ethernet framing reserves the bit pattern 0111110 (0x7E) as a flag to mark the beginning and end of a frame. We use bit stuffing to prevent this 7E pattern from occurring in data. This modifies the data (the bit stream) so that the pattern doesn't occur. * Why do we use flags to mark the beginning
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Question 7 Not yet answered Marked out of 1 . 0 0 Flag question IPv 4 IP addresses are q , bit binary numbers: Select one: A . 1 6 B . 3 2 C . 2 4 D . 1 2 8 E . 2 5 6
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what is a datastore.

How has federal requirements for access to the general education curriculum and the inclusive education movement affected the programming for this population?
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Artificial Intelligence - Conditional Dependency in a Bayesian Networ The letters refer to the ones written in red in the nodes. So I refers to the node Intelligent. Also, the lowercase letters also refer to the same nodes. P(+i)= .7 refers to the Intelligent node. 3 Bayesian networks We are going to take the perspective of an instructor who wants
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Hi there, I would love if someone could help me understand how to code this. I must use the basics of C, and this program is mostly to learn about loops. We cannot use arrays here. Thank you 3. Write a program that calculates and prints the sum of the even integers from 2 to 30
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Which attributes describe a good landing page experience? Select All Correct Responses Easy to navigate High amount of user traffic Relevant and original content Transparency about your business
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Method name: lowestAlphabetically Parameter(s): A String of lower-case words separated by spaces and made up of the letters a-z. The String will have at least one word. Return value: A String containing the lowest alphabetical word. The String method compareTo() does a lexicographic comparison between two strings, which allows you to test for the

? ? ? ? ? ? ? ? ? ? ? ? ? ? f u n c t i o n i s u s e d f o r r e a d i n g . c s v f i l e i n R l a n g u a g e . Group o f answer choices table. c s v write. c s v ( ) let. c s v ( ) read. c s v ( )

On a digital wave form the transition time from low level to a high level is called

Question. Using a gap penalty of d=-1 and scoring matrix as below 1. Optimal global alignment a. Using dynamic programming, fill in the table in computing the score of the optimal global alignment of ACATGT and AGCTA b. Based on the table, find all the optimal global alignments of ACATGT and AGCTA. A 133. C3132 G-213. T-3-231 A 133. C3132 G-213.
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Multi Data Collections Objectives The objective of Assignment 5 is for us to gain experience designing a software solution using multiple data organizations (i.e., data collections). We shall also gain experience expressing the design of our multiple data organizations by drawing their underlying data structures. To get an idea of what a multiple

Can you only import text files to Excel if comma (",") is used a column delimiter? Select one: O True O False
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hapeer: Abstract Data Types 96 by Dale/Joyce/Weema ITDArEayStringLog Java Interactive Teat Deiver for the Arraystring isport java.util import ch02.stringloge. sys publte class ITDArrayStringlog pablic atatie void main(Stringl) arga) ArrayStringlog test new Arraystringlog("Testing") Scanner conin nev Scanner (System.in): // akip end of 1ne after
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Hi there, I would love if someone could help me understand how to code this. I must use the basics of C, and this program is mostly to learn about loops. We cannot use arrays here. Must be in C language! Thank you so much, will for sure thumbs up. 4. An integer n is divisible by 9 if the sums of its digits are divisible by 9. Develop a program to
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Code in python a script that print the first 15 iterations of optimization Newton's method, considering as starting point (0, 3). Present the parameters calculated at each iteration (x12)4+(x12x2)2
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Assign 1 0 #no h to 0 0 ( #no ) : 0 4 0 0 h and #no h to 0 0 4 0 : 0 0 #no h write a program that store; a ) The sum of these two numbers in 0 0 #no: 0 6 0 0 h b ) The difference of these two numbers in 0 0 #no: 0 6 0 2 h c ) The product of these two numbers in 0 0 #no: 0 6 0 4 h d ) After the division of these two numbers, the quotient in 0 0

needing C# code for this exercise Create a program named HighScore containing a Form that hosts a game in which the computer randomly selects one of three letters (A, B, or C) and the user tries to guess which letter was selected. At the start of the game, read in the previous high score from a data file. (Create this file to hold O the first time
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Write a C++ program to count the number of blank present in a string. Use for loop to count the number of blank. Use strings member function at (int i) to check each character in the string ( if(ch== ) count++;). Finally output your result.

(2) write C++ program to create class called desktop, that contains data members of code, price, speed, model and weight, the class has constructor to assign values and function to display values. The desktop class has a friend function to print the model of the desktop that has the heavist weight among three desktops
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Choose two of the programs you've written, and add at least one comment to each. If you don't have anything specific to write because your programs are too simple at this point, just add your name and the current date at the top of each program file. Then write one sentence describing what the program does

It's late, and Cookie Monster is hungry. He's going to sneak downstairs to get a cookie from the cookie jar. But the lights are off and it's dark! He will have to fumble for the lightswitch to brighten up the room. For this question, you will write a program that will simulate how bright the room is as the lights are turned on or off. Here is a
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Write a program that prompts the user to enter in their name. Retrieve the data as a single string, parse it and determine if the name was entered in as First Last or Last , First . If the name was entered in as Last , First print it out as shown. If the name was entered in as First Last modify it to be Last , First and print it out. Insert a

Help me solve questions 1 , 2 and 3 Please provide me with the full script first as well before giving the chart. Thank you ever so much
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a) There is a Cookies vending machine that sells a Rice Cracker packet for 50 cents and a Butter Cookies packet for 30 cents. Construct a simple possible Turing Machine (TM) using appropriate state transition diagram to demonstrate if enough coins have been entered for a purchase. Meaning, the TM constructed should deliver a Rice Cracker packet if

2 . Create a friends table and add the full _ name, address, and the dates _ to _ remember composite types. a . Insert a new record into the friends table as shown on slide 1 0 of the lecture slides.

PLEASE EXPLAIN HOW TO CREATE IT STEP BY STEP. SHOW AN OUTPUT OF THE CODE AND LINK TO THE FILE IF POSSIBLE. PLEASE ALSO EXPLAIN EACH LINE OF CODE Write a main application ( WITHOUT USING HASHMAPS) called Project1.java, and a GUI (that extends JFrame) called RomanNumeralGUI.java. The main program should open a file called input.txt which will

Provide a definition and example for the keyword listed below (100 150 words). Fact Star schema Snowflake schema Describe the time dimension. Describe the grain of the data warehouse. Define the ETL process. Define Normalization/Denormalization Define Business Intelligence

2. Consider the following 2-player game, X vs. Y. At each stage, an integer utility value N is assigned to a legal move. Each of X and Y has two legal moves, respectively, as shown below. X player: Move A: new N= old N + (old N mod 23) -11 Move B: new N= old N+ 20 - (old N mod 41) Y player: Move C: new N= old N+2*(old N mod 17) -16 Move D: new N=
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Based on the answer to the first question how do I solve the next question? --- Programming language is C Give the output for the following C code: char M[3] [4] [4]; void main(void) { int i, j, k, n = 0; for (i=0; i
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3. Using a truth table, show that pA(GVr) (PA) V (PAr) 4. Using a sequence of substitutioas, show that (png)-(p v q) is a tautology
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c++ Question 7 Given portion of a program. Answer the following questions. = int que28 () { int count; int sum; int nombor 5; sum = 0; for (count 1; count
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(C++) Need to import the text from a notepad document including a space. I already have the program, but it is skipping spaces. here is the program and input. PROGRAM #include #include #include #include #include using namespace std; ifstream in_stream; string iarray[201]; int s = 0; void readFromFile() { in_stream.open("Input7.txt"); if

can somone solve this fast for me? please dont forget the equation You will design a sequential circuit using two D Flip-Flops. The sequential circuit has one input X (input bits), and one output Y. You are given the state diagram of the sequential circuit. SI 1 00/0 01/0 0 1 11/1 10/0 Model and formulate the problem by constructing the State
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Using the final version of EncapsulationExample.java (below), modify it with the following: 1) Add an instance variable (remember encapsulation) of type String that is called gender 2) Add the instance variable you created to both of the constructors a) For the constructor that takes arguments, you can assume the user will instantiate with valid

Write a program in java or psuedo code Given 5 rocks of different weight and lever scales, in 7 tests sort the rocks by weight
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7. Fill in the Code Point 2 For Questions 1 to 2, consider the following class: import javax.swing.*; import java.awt. import java.awt.event.* public class A extends JFrame ( private Container c; private JButton b; private JTextField tf; a. Inside the constructor, this code instantiates the button b with the text "Button". // your codes here b.
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If f(x)=x^(2),g(x)=x^(2)-5, and h(x)=x^(2)+2, what transformation would map: a

Precalculus Problem 1.2 from the text on page 22. Suggestion: First work thru the steps in the analysis from the text where they show that sin(0) - O has order O(03). Then, write some code to investigate the order of 1 - cos(0). You can create a table by hand or computer to support your answer. Finally, consider using something like L'Hospital's
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trace the following program and correct the error and then write it correctly and write its output String[] fruits = new String[3]; fruits[0] = "Mango"; fruits[1] = "Apple"; fruits[2] = "Strawberry"; fruits[3] = "Watermelon"; System.out.println(fruits[1]); ArrayList fruitList = new ArrayList[]; fruitList.add("Mango"); fruitList.add("Apple");
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What is the output of the following program? #include void func(void) { static int a = 10; a++; printf("%d", a); } int main(void) { func(); func(); printf(" "); return 0; } O 10 11 11 11 10 10 11 12 10 12
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help please i want the answer step by step Use the three - point centered - difference formula for second derivative f ' ' ( x ) = 1 h 2 ( f ( x + h ) - 2 f ( x ) + f ( x - h ) ) a ) to approximate f ' ( x ) at x = 1 , where f ( x ) = a r c t a n ( x ) , for h = 1 0 n , n = - 1 , - 2 , dots, - 1 7 ; b ) prove that the error of the approximation, i
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3. (6 points) Suppose P(x,y) means "x + 2y 25", where x and y are integers. Determine the truth value for each of the following statements. Briefly explain. (a). 3y P(1,y). 1 + 2y = 5 if x=1, then for Xray 5 za uza (b). Vx 3y P(x,y). If you pick any number for y, you can find a positive numbr for 'y to multiply by a to mase stadens trice. Ex. x=
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The max. heap property is that at every node Question 9 options: The value of the node is less than or equal to the values at the nodes left and right children The value of the node is greater than or equal to the left child value and less than or equal to the right child value The value of the node is Less than or equal to the left child value

Please write the program in both C language and x86: The task is to write a program that displays the calendar according to the user input. Example below: Month: 1 Year: 2019 January 2019 Su Mo Tu We Th Fi Sa 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
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what are lexical rules? how are these rules written? Explain? include examples?

Multiple Linear Regression Goal is to build a Multiple Linear Regression Model in R or excel Please take the screenshots of the outputs from each step and include in the word document. Explain the Outputs in each step as per your understanding. data(iris) # load iris data head(iris) # peek at the data unique(iris$Species) # look at unique species

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