in Java Write a method called randomNumber that returns a random floating-point number in the range of [-20.0, 50.0). (hints: use Random class in the method)

Examine the role of IT governance and why it is important in the IT industry.

Analyze key aspects of IT governance, including enterprise resource planning and transaction processing systems.

in c++:

The area of an arbitrary triangle can be computed using the formula
where a, b, and c are the lengths of the sides, and s is the semiperimeter :
s = (a + b + c) / 2
1. (5 points) Write a void function that uses five parameters :
three value parameters that provide the lengths of the edges and
two reference parameters that compute the area and perimeter(not the semiperimeter).
Make your function robust.Note that not all combinations of a, b, and c produce a triangle.
Your function should produce the correct results for legal data and reasonable results for illegal combinations.

Round Robin Simulation

Description: 
Write a program  in c++ that utilizes STL queue (or your own queue implementation) that simulates the round robin process scheduling algorithm. 
WITH COMMENTS
Requirement: 
- write a class Process that holds following integer information: id, arrival_time, time_needed, finished_time.
- read and initiate 5 Process objects from associated file (robin. txt)
- file format: id, arrival_time, time_needed
- once a process is finished, mark its finished_time accordingly. 
- CPU time frame: 4. 
- utilize a queue for process scheduling.
- store finished processes into a vector (first finished, first stored)
- output: print information about finished processes from the vector, in the finished order.

robin.txt:

1 0 10
2 1 12
3 5 6
4 6 10
5 7 4

You’ve been asked to install a new service called explodingwidgets. After installing the explodingwidgets package, what is the most likely way you would start the service?

I've created a C# Windows form application in Visual stuidos it allows the user to enter information, save that information to a database, then show that information in a datagridview. Everything works fine but the datgridview. It shows that rows have been added but not the text. I can see in my database the reports that have been added so I know its alteast saving the information. I don't know what I'm doing wrong. Please help!

My code:

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;
using System.Data.SqlClient;
using System.Globalization;

namespace Reports
{
public partial class ReportsForm : Form
{
public ReportsForm()
{
InitializeComponent();
}
SqlConnection con = new SqlConnection("Data Source=Blu;Initial Catalog=Reports;Integrated Security=True");
SqlCommand cmd;
private void Submitbtn_Click(object sender, EventArgs e)
{
  

String query = ("INSERT INTO Reports_tbl (EntryDate, ReportText) VALUES ('" + DateTime.Now + "','" + ReportsrichTextBox.Text + "')");
con.Open();
cmd = new SqlCommand(query, con);
cmd.ExecuteNonQuery();
con.Close();

MessageBox.Show("Report Successfully Added");

ReportsrichTextBox.Text = "";

  
}

private void Form1_Load(object sender, EventArgs e)
{

SqlConnection con = new SqlConnection("Data Source=Blu;Initial Catalog=Reports;Integrated Security=True");

con.Open();

SqlDataAdapter da = new SqlDataAdapter("SELECT * FROM Reports_tbl", con);

DataSet ds = new DataSet();

da.Fill(ds,"Reports_tbl");

  
ReportsdataGridView.DataSource = ds.Tables["Reports_tbl"].DefaultView;

  

con.Close();

}
}
}

When browsing to a web page you’ve configured, you are receiving a 403 error. What are two possible causes, and how would they be remedied?

how to solve 403 error issue?

The two standard ACL commands are getfacl and setfacl.

1. What is the difference between them?

2. How can setfacl help achieve security hardening?

For the following exercises, enter the data from each table into MS-Excel and graph the resulting scatter plots (Use a smoothing function). Determine whether the data from the table could represent a function that is linear, exponential, or logarithmic.

Create this C++ program using classes

1. Create a file text file with a string on it

2. Check the frecuency of every letter, number and symbol (including caps)

3. Use heapsort to sort the frecuencys found

4. Use huffman code on the letters, symbols or numbers that have frecuencys

I created the file, and the frecuency part but i'm having trouble with the huffman and heapsort implementation.

Php

2. Use case diagram and the purpose of using a use case diagram.==> analysis

3. use case diagram and data flow diagram==> model the logical concept

4. draw a use case diagram or describe/explain a use case diagram

5. data flow diagram: context diagram + a set of subdiagrams

Question: Write a single SQL query that, for each pair of actors, lists their two actor_ids
and the number of films in which both actors appeared.

DATABASE SCHEMA

CREATE TABLE actor (
actor_id INTEGER,
first_name TEXT,
last_name TEXT);

CREATE TABLE film (
film_id INTEGER,
title TEXT,
description TEXT,
length INTEGER);

CREATE TABLE film_actor (
actor_id INTEGER,
film_id INTEGER);

There is a famous puzzle called the Tower of Hanoi. Code the recursive implementation of it with Python.

Language Javascript

1. Implement Insertion Sort

   1. Non-increasing order,

   2. At least an array of 10 elements.,

   3. You can use a static array.