1. Problem: write a complete program to calculate the total price of an item by asking the user to input the price and quantity of the item. 2. The main () function will prompt the user to enter the mass and volume of a block. function findDensity() will receive the mass and volume and will calculate and return

1. Problem: write a complete program to calculate the total price of an item by asking the user to input the price and quantity of the item. 2. The main () function will prompt the user to enter the mass and volume of a block. function findDensity() will receive the mass and volume and will calculate and return

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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Computer Science Write a python function that will draw an equilateral triangle. Call this this function n times from a main function to draw n nested triangles. (input n and side of largest triangle) Proper spacing, comments, pre and post conditions are required. You must write pre and post condition comments at top of each function after function header
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C++ Fix the broken code, Fix the function that is being used It does not charge the full hour for fractional portions. If you enter 4.5 it will return 27.50 as opposed to 30. Instructions to fix the code Consider this…. Charge will never be less than 20 so…… double charge = 20; for hours above 3…. If (hours >3) charge = 20 + ceil(hours -3)*5; where ceil brings it up to the next full hour value…. The charge will never be greater than 50 so….. If (charge > 50) charge = 50; now all you need to do is return charge Here is the code: #include<iostream>#include<iomanip>using namespace std;/* This is a function that calculates the charge of parking for the given amount of time (in hours) */double calculateCharges(double hours) {if (hours <= 3.0) { // If the time is less than 3 hours.return 20.0; // Charge a fixed amount of $20}else {double charge = 20.0 + (hours - 3.0) * 5; // Calculate the charge, which is $20 + ($5/hour for excess of 3 hours)if (charge >= 50.0) {…
#include<iostream>using namespace std; Instructions: Do not print anything inside the function. Even the invalid inputs should not be printed Errors should be reported by returning -1 as indicated Problem 1: Write a function to check if the given year is a leap year Should return 1 if the year is a leap year, 0 otherwise We will handle only years>=1901. So if year<=1900, return -1 to indicate an error Note: do not print anything in the function.int IsLeapYear(int year) { } Problem 2: Return number of days in a given month. You must check for the leap year. Return number of days of the given month Return -1 in case of inavlid input. Year<=1900 in all cases should be considered invalidint NumOfDays(int month, int year) { } Problem 3: Return 1 incase date is valid. Year <=1900 should be consiered invalid Return -1 in case date is not invalid.int IsValidDate(int date, int month, int year) { } Problem 4: Compute number of days passed since Dec 31, 1900. Following are…
As computer costs declined, it becomes feasible for every student, regardless of economic circumstance, to have a computer and use it in school. This creates exciting possibilities for improving the educational experience of all the students worldwide. The use of computers in education is referred to as computer assisted instruction. Module 1: WAP to help the school student to learn mathematical operations. Use the rand function to produce two Positive one digit integers. The program should then prompt the user with such a question as “how much is 6 * 7?” “how much is 5+4?” The student then input the answer. Next the program checks the answer. If it's correct display the message “very good” and ask another question if the answer is wrong display the message “no please try again” Module 2: one problem in CAI environment is student fatigue this can be reduced by varying the computer's response to hold the student’s attention. Modify the program so that various comments are…
Problem 2: Simple Interest The formula for computing the future value of an amount that is increasing due to accumulating simple interest is F=P(1+rxi) Where F is the future value, P is the present value, is the annual interest rate (decimal value not percent), and is the total time period in years. Write a function named simpleInterest that accepts values for the three variables P, and and assings them to the output variable futureValue Function Code to call your function > Save C Reset function [futureValue] =simpleInterest (presentValue, interest RatePercent, time Years) %Enter commands to perform the computation and assign the results 3 %to the output variable defined in the function command in line 1. 1 [futureValue] =simpleInterest (10000,5.25,5) My Solutions > MATLAB Documentation C Reset Run Function
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3. Create a function called (Ysum) that find the value of y from following equation:
C PROGRAM Please help me with this one. Just choose the letter of the correct answer. Thanks in advance.
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True/False 2. A function may only be called at one place in a program.
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