(Q4) Answer two only of the following question: A) X= [3 0 1 0]; y=[2007] find: 1-The logical operator (OR) what is the ans= 2-The relational operator (y <2) what is the ans= B) Write the program using (while loop and continue statement at 8) to print the number from (2:10) and appeared the result if the program run C) x [1:9] y =[2:2:18]; write the program to plot(x,y) cooler the line(red) with width (2)

(Q4) Answer two only of the following question: A) X= [3 0 1 0]; y=[2007] find: 1-The logical operator (OR) what is the ans= 2-The relational operator (y <2) what is the ans= B) Write the program using (while loop and continue statement at 8) to print the number from (2:10) and appeared the result if the program run C) x [1:9] y =[2:2:18]; write the program to plot(x,y) cooler the line(red) with width (2)

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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5. (Algebra: solve 2 X 2 linear equations) You can use Cramer's rule to solve the following 2 X 2 system of linear equation: ax + by = e cx + dy = f ● x = ed - bf bc ad y = af - ec ad bc - Write a program that prompts the user to enter a, b, c, d, e, and f and display the result. If ad- bc is 0, report that The equation has no solution. Enter a, b, c, d, e, f: 9.0, 4.0, 3.0, -5.0, -6.0, -21.0 Enter x is -2.0 and y is 3.0 Enter a, b, c, d, e, f: 1.0, 2.0, 2.0, 4.0, 4.0, 5.0 Enter The equation has no solution
(Rounding Numbers) Function floor can be used to round a number to a specific decimal place. The statementy = floor(x * 10 + 0.5) / 10;rounds x to the tenths position (the first position to the right of the decimal point). The statementy = floor(x * 100 + 0.5) / 100;rounds x to the hundredths position (the second position to the right of the decimal point). Write a program that defines fourfunctions to round a number x in various ways:A. roundToInteger(number)B. roundToTenths(number)C. roundToHundredths(number)D. roundToThousandths(number)For each value read, your program should print the original value, the number rounded to the nearest integer, the number rounded to the nearest tenth, the number rounded to the nearest hundredth and the number rounded to the nearest thousandth.
(Rounding Numbers) Function floor may be used to round a number to a specific decimalplace. The statementy = floor(x * 10 + .5) / 10;rounds x to the tenths position (the first position to the right of the decimal point). The statementy = floor(x * 100 + .5) / 100;rounds x to the hundredths position (the second position to the right of the decimal point). Writea program that defines four functions to round a number x in various waysa) roundToInteger(number)b) roundToTenths(number)c) roundToHundreths(number)d) roundToThousandths(number)For each value read, your program should print the original value, the number rounded to thenearest integer, the number rounded to the nearest tenth, the number rounded to the nearest hundredth, and the number rounded to the nearest thousandth.
6. Simplify the following expression: (must use theorems, and mention the name of the theorem you are using) F = AB'C + B'C + BCD
(DEBUG AND MAKE A FLOWCHART OF THIS PROGRAM) // This pseudocode is intended to display// employee net pay values. All employees have a standard// $45 deduction from their checks.// If an employee does not earn enough to cover the deduction,// an error message is displayed.// This example is modularized.start Declarations string name string EOFNAME = ZZZZ while name not equal to EOFNAME housekeeping() endwhile while name not equal to EOFNAME mainLoop() endwhile while name not equal to EOFNAME finish() endwhilestop housekeeping() output "Enter first name or ", EOFNAME, " to quit "return mainLoop() Declarations num hours num rate num DEDUCTION = 45 num net output "Enter hours worked for ", name input hours output "Enter hourly rate for ", name input rate gross = hours * rate net = gross - DEDUCTION if net > 0 then output "Net pay for ", name, " is ", net else output "Deductions not covered. Net is…
(Algebra: solve 2 x 2 linear equations) You can use Cramer's rule to solve the following 2 x 2 system of linear equation: ax + by = e ed – bf af- ec ad - bc cx + dy = f ad – bc y = Write a program that prompts the user to enter a and f and display the result. If ad - bc is 0 b, c, d , e, , report that The equation has no solution.
State which of the following are true and which are false. If false, explain your answer.b) The following are all valid variable names: _under_bar_, m928134, t5, j7, her_sales,his_account_total, a, b, c, z, z2.
telk (Business: check ISBN-10) Question 11 An ISBN-10 (International Standard Book Number) consists of 10 digits: dididadadsded,d dad1o. The last digit, d10, is a checksum, which is čalculated from the other nine digits using the following formula: (d, x1+dz x 2 + d, X 3+ d, X'4 + de X5 + de X 6 + d, × 7 + dg × 8+ dy X 9) % 11 If the checksum is 10, the last digit is denoted as X, according to the ISBN convention. Write a program that prompts the user to enter the first 9 digits as a string and displays the 10-digit ISBN (Including leading zeros). Your program should read the input-as a string. Here are sample runs Enter the first 9 digits of an SBN-10 as a string: 013601267 The ISBN-10 number is: 01360112671 Show transcribed image text
(Fraction calculator) | Write a program that lets the user perform arithmetic operations on fractions. Fractions are of the form a/b, in which _a_ and _b_ are integers and b ≠ 0. Your program must be menu driven, allowing the user to select the operation (+, –, *, or /) and input the numerator and denominator of each fraction. Furthermore, your program must consist of at least the following functions: Function menu: This function informs the user about the program’s purpose, explains how to enter data, and allows the user to select the operation. Function addFractions: This function takes as input four integers representing the numerators and denominators of two fractions, adds the fractions, and returns the numerator and denominator of the result. (Notice that this function has a total of six parameters.) Function subtractFractions: This function takes as input four integers representing the numerators and denominators of two fractions, subtracts the fractions, and returns the…
Q1) A scientist needs your help to find the sum of the following series: x3 x5 + 4 6 X - scientist will provide you with the following: The number of terms The value of x 8 +.....] Write a C-program to help the scientist to accomplish his task. Hint: use #include to find the power using pow() function.
6. B) Write equivalent expressions for each of the following by using De Morgan’s Law. !(a || b) !(y > 2 && !found )
( (A + B ) * (C – D) + E / F ) – G Using manual and algorithmic methods, write the following expression to postfix form: