In this video, the teacher explains the concept of Y equals MX and where it comes from. They use the idea of similar triangles to derive the equation. The lesson emphasizes that the equation represents a line passing through the origin...

In my first year as an engineer I used more math than most engineers probably do to begin, but it was also much less than I was doing in school. As someone who enjoys math I was curious how much I would see in engineering during...

Did you know that all musical intervals can be expressed using some basic math? Today we talk about some of that math.

👉 Learn how to graph linear inequalities written in slope-intercept form. Linear inequalities are graphed the same way as linear equations, the only difference being that one side of the line that satisfies the inequality is shaded. Also...

Although the Greeks initially thought all numeric qualities could be represented by the ratio of two integers, i.e. rational numbers, we now know that not all numbers are rational. How do we know this?

It explains various uses of the branch chemistry in the various fields.

The video focuses on the concept of liquidity and its importance in financial ratio analysis. It explains how businesses measure liquidity and the significance of liquidity ratios in determining the financial stability and health of a...

In this video, the teacher explains how to find missing measures in triangles using congruence and similarity criteria. They cover different congruence criteria, such as side-side-side and angle-side-angle, as well as similarity criteria...

In this video, the teacher explains how to use the cosine ratio to find the length of a ladder needed to climb to a roof at a specific angle. By comparing the ratios of the side adjacent to the angle and the hypotenuse in a right...

In this video, the teacher explains how to simplify ratios by finding patterns in a picture. Using the example of Eddie baking cookies with four cups of chocolate chips and eight cups of sugar, the teacher demonstrates how to describe...

It is important to get your chemistry formula right. This revision video by Chris Raynerd will help you understand the basics of Organic Molecules.

👉 Learn about dilations. Dilation is the transformation of a shape by a scale factor to produce an image that is similar to the original shape but is different in size from the original shape. A dilation that creates a larger image is...

👉 Learn how to evaluate the six trigonometric functions given some constraints. When given the value of one trigonometric function, we can use a right triangle with one of its legs on the x-axis and the other leg, perpendicular to the...

In this video, students learn about the similarities and differences between ratios and fractions. They explore how ratios can be written as fractions, but not all ratios are actually fractions.

In this video, the teacher explains the section formula in coordinate geometry and how it can be used to find the coordinates of a point that divides a line segment in a given ratio. The teacher also introduces the midpoint formula,...

👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides...

In this video, the teacher introduces the concept of ratio analysis in accounting. They explain the four main categories of ratios - liquidity, leverage, activity, and profitability - and how they can be used to analyze a company's...

In this video, students learn how to determine the best deal by comparing equations that represent the proportional relationship between the total cost and the number of items. They are taught to find the unit cost by dividing the total...

ACT SAT Prep How to determine the perimeter of a triangle using similar triangles

This video explains the importance of census and how data is collected, organized, analyzed, interpreted, and presented through statistics. It provides examples of different methods of data presentation and emphasizes the role of...

I show how to solve math problems online during live instruction in class. This is my way of providing free tutoring for the students in my class and for students anywhere in the world. Every video is a short clip that shows exaclty how...

This lesson will explain the differences between hydrated and anhydrous salts, including how to write their names and chemical formulae.<br/>
Definitions included: hydrated salt, water of crystallisation, anhydrous, anhydrate, aqueous salt

Explanation of Aspect Ratio

Brendan Greeley says economists have started talking more openly about sovereign debt. For example, if a country's nominal growth rate is higher than its cost of debt, it might make sense to borrow.