# Conic sections: Hyperbolas 2 | Conic sections | Algebra II | Khan Academy

## By Khan Academy

This video lecture series on Algebra from Khan Academy includes Linear Equations, Solving Inequalities, Slope and Y-intercept, Equation of a Line, Averages, Integer sums, Taking Percentages, Systems of Equations, Ratios, Multiplying Expressions, Solving a quadratic by factoring, Imaginary Numbers, Complex Numbers, Quadratic Equations, Quadratic Inequalities, Functions, Conic sections, Circles, Ellipses, Hyperbolas.

# 9.5 The Distance Formula (Lesson and Practice)

## By AutenMath

A lesson on the distance formula

# Heron's Formula, Example 1

## By PatrickJMT

Heron's Formula, Example 1. Here I use Heron's Formula to find the area of a triangle.

# Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1

## By PatrickJMT

Trigonometric Functions To Find Unknown Sides of Right Triangles, Ex 1. In this video, I use information about the length of the hypotenuse of a right triangle as well as a trig value to find the area of the triangle.

# Trigonometry - sine ratio example

## By Mr Jamieson Maths

In this video made with 'Explain Everything' an applied example of how to use the sine ratio is shown.

# How to? - Trigonometry Cosine Ratio

## By skoolm8

Shows you how to use the Cosine Ratio to find and unknown side of a right angle triangle.

# Weights and Measures Part II

## By Southwest Center for Microsystems Education

This YouTube video, created by Southwest Center for Microsystems Education (SCME), is the second in a series of three videos created to educate viewers about weights and measures in the context of nanofabrication. This segment, which is 17:08 minutes long, covers the seven core units of measurement in the SI universal system . Viewers can learn more about this topic on the SCME website.

# Pronoun Lesson for High School -Time4Writing.com

## By Time4Writing

This video reviews many different kinds of pronouns. It lists all the personal pronouns and many examples of other types.

# Pronoun-Antecdent Agreement

## By EnglishI PLC

This instructional video presents pronoun-antecedent agreement. It offers a good review of this topic for high school students

# Can you find the English grammar mistakes?

## By Espresso English

This video reviews common errors in the usage of Standard English. It addresses such grammatical issues as non-count nouns, phrasal verbs, and comparative modifiers

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