Encyclopaedia Britannica
Medical Inventions from War: Vietnam War
Learn more about medical innovations of the Vietnam War.
Curated Video
Investigating Temperature Changes in Chemical Reactions
The video is a tutorial on how to investigate temperature changes in chemical reactions, specifically focusing on the concepts of exothermic and endothermic reactions. The video explains the definition of the two terms and provides...
The Wall Street Journal
How to Measure Cybersecuirty Awareness
Lance Spitzner, Director at SANS, discusses how should companies can best measure and report the effectiveness of their cybersecurity programs.
Independent Producers
Beach Erosion Threatens Infrastructure
What happens when human structures and nature come into conflict? Ocean Beach in San Francisco is naturally eroding, but the consequence of this shifting shoreline is that a sewage treatment plant is put in peril. Without intervention,...
Brian McLogan
What does the discriminat tell us about our zeros graphically
👉 Learn all about the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of...
Brian McLogan
Solving using the quadratic formula with complex solutions
👉 Learn how to solve quadratic equations using the quadratic formula. A quadratic equation is an equation whose highest power on its variable(s) is 2. The quadratic formula is a formula which can be used to find the roots of (solve) a...
Brian McLogan
Learn to solve a system of equations with no solution by substitution
👉Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of the variables that makes the each of the equation in the system true. To solve a system of equations by...
Brian McLogan
How to solve a system of equations using the addition method, 2w+5y= -24; 3w-5y=14
👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which are collectively satisfied by one solution of the variables. The elimination method of solving a system of equations involves...
Brian McLogan
What do you need to know to solve compound inequalities
👉 Learn all about solving and graphing compound inequalities. An inequality is a statement in which one value is not equal to the other value. A compound inequality is a type of inequality comprising of more than one inequalities. To...
Brian McLogan
Solving logarithmic equations with extraneous solution
👉 Learn about solving logarithmic equations. Logarithmic equations are equations involving logarithms. To solve a logarithmic equation, we first use our knowledge of logarithm laws/properties to express the terms in both sides of the...
Brian McLogan
Solving a natural logarithmic equation using quadratic formula
👉 Learn about solving logarithmic equations. Logarithmic equations are equations involving logarithms. To solve a logarithmic equation, we first use our knowledge of logarithm laws/properties to express the terms in both sides of the...
Curated Video
Understanding Inequalities: Multiple Solutions Explained with Bar Models
In this video, the teacher explains the concept of inequalities and how they can have multiple solutions. Using a real-world example of a person making pottery figures, the teacher demonstrates how to solve an inequality using...
Curated Video
Biological Methods of Extracting Metals: Pros and Cons
The video explains the concept of biological methods of extracting metals. It explains the conventional methods of extracting metals using chemical reactions or electrolysis and the limitations of these techniques when dealing with low...
Curated Video
How to Answer IDP’s Toughest Writing Task 2 Question
Today you’ll learn how to plan and answer the toughest Task 2 question from the IDP website. I found this mixed Task 2 question on IDP’s website. Although it is older, it could still be found on an IELTS Exam today. Here’s the question:...
Virtually Passed
Math puzzle - Rolling dice 6 times
What is the probability of getting at least 1 six if a die is rolled 6 times? Can you figure it out?
Let's Tute
GST Accounting
In this video, we have provided real life questions for you to solve along with us from our previous videos .
Brian McLogan
What does the discriminant tell us about the solutions of a quadratic equation
👉 Learn all about the discriminant of quadratic equations. A quadratic equation is an equation whose highest power on its variable(s) is 2. The discriminant of a quadratic equation is a formula which is used to determine the type of...
Brian McLogan
Introduction into quadratic equation, roots, zeros and solutions
👉Learn how to solve quadratic functions. Quadratic equations are equations whose highest power in the variable(s) is 2. They are of the form y = ax^2 + bx + c. There are various techniques which can be applied in solving quadratic...
Brian McLogan
Applying the difference of two squares to solve a quadratic
👉Learn how to solve quadratic equations by factoring the difference of two squares. We can identify the difference of two squares but looking for binomials that have square terms. Difference of two square quadratic equations is of the...
Brian McLogan
Solve a system of linear equations using substitution
👉Learn how to solve a system of equations by substitution. To solve a system of equations means to obtain a common values of the variables that makes the each of the equation in the system true. To solve a system of equations by...
Let's Tute
Calculating Fire Insurance Claim: Adjustments for Abnormal Goods
In this video, the teacher explains how to calculate the amount of fire insurance claim for a company whose premises were destroyed in a fire. The teacher walks through the process of preparing a trading account, adjusting for abnormal...
Curated Video
Finding Solutions to Systems of Equations
In this video, the teacher explains how to find the solution to a system of equations by looking at their intersection on a graph. They demonstrate this concept using two different examples and show how to set the expressions equal to...
Curated Video
Solving Systems of Linear Equations Using Tables
In this video, the teacher explains how to solve a system of linear equations using a table. They use the example of creating different polygons using a specific number of magnetic bars.
Science360
The spy who hacked me - Measuring the security vulnerabilities of 3-D printing
In episode 65, Jordan and Charlie explore how a smartphone can hack a 3-D printer by measuring leaked energy and acoustic waves. Despite features such as encryption and watermarks, researchers at the University at Buffalo have found...