(Geometry: polygon subareas) A convex 4-vertex polygon is divided into fourtriangles, as shown in Figure 8.8.V2 (x2, y2)V1 (x1, y1)V3 (x3, y3)V4 (x4, y4)A 4-vertex polygon is defined by four vertices.Write a program that prompts the user to enter the coordinates of the four ver-tices and displays the areas of the four triangles in increasing order. Here is asample run:

Here is the java program: import java.util.Scanner; public class PolygonSubareas { staticfinalint…

Answered: (Geometry: polygon subareas) A convex…

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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(Use Python) Use the Design Recipe to write a function, print_histogram that consumes a list of numbers and prints a histogram graph using asterisks to represent each number in the list. Use one output line per number in the list. You may assume that only integers are passed to this function. Your function should ignore negative values. Test Result print_histogram([ 2, 0, 4, 1]) ** ***** print_histogram([10, 5, 3, -1, 8]) **************************
(Bar-Chart Printing Program) One interesting application of computers is drawing graphsand bar charts. Write a program that reads five numbers (each between 1 and 30). For each numberread, your program should print a line containing that number of adjacent asterisks. For example,if your program reads the number seven, it should print *******.
(Area of a convex polygon) A polygon is convex if it contains any line segment that connects two points of the polygon. Write a program that prompts the user to enter the number of points in a convex polygon, then enter the points clockwise, and display the area of the polygon. Sample Run Enter the number of points: 7 Enter the coordinates of the points: -12 0 -8.5 10 0 11.4 5.5 7.8 6 -5.5 0 -7 -3.5 -5.5 The total area is 244.575
(Convert decimals to fractions)Write a program that prompts the user to enter a decimal number and displays the number in a fraction.Hint: read the decimal number as a string, extract the integer part and fractional part from the string, and use the Rational class in LiveExample 13.13 to obtain a rational number for the decimal number. Use the template athttps://liveexample.pearsoncmg.com/test/Exercise13_19.txt The problem can not use BigInteger //Below is the Rational LiveExample 13.13 that goes with the problem/question; notice "long" instead of "BigInteger" class Rational extends Number implements Comparable<Rational> { // Data fields for numerator and denominator private long numerator = 0; private long denominator = 1; /** Construct a rational with default properties */ public Rational() { this(0, 1); } /** Construct a rational with specified numerator and denominator */ public Rational(long numerator, long denominator) { long gcd = gcd(numerator,…
(Element-Wise array Multiplication) Create a 3-by-3 array containing the even integers from 2 through 18. Create a second 3-by-3 array containing the integers from 9 down to 1, then multiply the first array by the second. Using Python. Please keep it simple.
(Plot the cube function) Write a program that draws a diagram for the functionf(x) = x3 (see Figure ).Hint: Add points to a polyline using the following code:Polyline polyline = new Polyline();ObservableList<Double> list = polyline.getPoints();double scaleFactor = 0.0125;for (int x = –100; x <= 100; x++) {list.add(x + 200.0);list.add(scaleFactor * x * x * x);}
(Java) The greatest common divisor of two positive whole numbers and n1 and n2 is the largest number g such that g evenly divided into both n1 and n2. Write a complete program that takes two positive whole numbers from the user and displays the common divisor.
[Updated[ Python Code Pt1: Algorithms and Data Structures Please use the sample input to see if the code works, as the output of the final code, must be the same as the correct output. Follow the details and notes provided and show the complete working sample code. Additionally, include comments to make the code easier to understand. I will show how the output was found (check K);Note: The final code should result in correct output (check I) if sample input A (check H) is used, or else I will give an automatic thumbs down A. TASKThe user inputs a path system and the work needed to traverse them. The goal is to Identify the relationships between paths, whether they have sequential, adjacent, or null relationships. For every sequential and adjacent relationship, give their work done based on the formula (check D). B. SAMPLE A path system illustration //See Image C. Relationship Examples with Sample A as basisSequential relationships: Path1 and Path2 as they are single paths that are…
(strongly connected digraph) A digraph is said to be strongly connected if there exists a path in both directions for every u-v pair, from u to v and v to u. python code for given statement
(java programming language) Write a program to read and store four student’s 21SP registered course and their grade point, sortthem into an order their 21SP registered course, based on grade point from the smallest to the largest,then print them out. The student’s 21SP registered course and their grade point values should be typedin by the user in response to a prompt message. Save the file as SortCourse_yourID.java

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