Khan Academy: Triangles: Another Isosceles Example Problem

Explains how to use given algebraic expressions for the measures of angles in an isosceles triangle and apply knowledge of the triangle sum theorem and the knowledge that the base angles of an isosceles triangle are congruent to...

A continuation of the video Limit Examples (Part 1), also from the Khan Academy. Addresses the case where the limit of a function is equal to infinity. Examples are explained both graphically and tabularly. [6:58]

Video example of using a sample distribution to solve a problem determining the probability that a sample mean is below a certain number. Includes example of finding a z-score and looking it up in a table to determine the probability....

This video demonstrates how to solve a multi-step word problem that involves finding the price of an item when a percent discount is given. Practice problems available. [6:18]

Students explore the Pythagorean Theorem by exploring a visual proof of the Theorem as they watch a video tutorial.

Sal dives in even deeper with a few more examples of exponential decay. Practice calculating k from half-life, and calculating initial mass. [7:21]

This video demonstrates how to set up and solve a system of equations in order to solve a word problem concerning rates. [10:04]

A step-by-step instructional video on how to solve a ratio problem using algebra. [9:58]

Video focuses on complex functions that require substantial simplification before determining the limit. Examples include a radical function and a trigonometric function. [15:02]

Video gives examples of vector addition, graphing vectors, multiplying vectors by a scalar and vector subtraction using vectors in R2 and extends to vectors in other dimensions. [25:33]