Khan Academy: Area of Koch Snowflake (2 of 2)

Video lesson continuing the problem from the previous video on finding the surface area along a closed curve using line integrals. Two line integrals are set up and solved and added to the area found previously. [9:58]

Video lesson showing how to visualize and use line integrals to find the surface area along a closed curved. Problem is solved by using three different line integrals, only one of which is set up and solved in this video. [12:53]

The sequel to Polar Coordinates 1 from the Khan Academy, this segment goes through some examples on converting polar coordinates to rectangular coordinates and converting a Cartesian equation to a polar equation. Graphing is also used to...

A continuation of the video Introduction to Interest also from the Khan Academy. This segment develops formulas for both simple and compound interest using the variables P, r and t. After each of the formulas are derived, they are used...

A video lesson in which a formula is derived for finding the inverse of a 2 x 2 matrix. Addresses that a 2 x 2 matrix is only invertible if the determinant is not equal to 0. Defines the determinant and shows two examples of calculating...

Video simplifying the square root of an algebraic expression by identifying perfect squares. [2:49]

This video demonstrates how to solve word problems related to a person's age by setting up and solving equations based on the information given in the problem. There are two sample word problems. [9:57]

Video is the second of two parts to demonstrate an example using election statistics to compare the population proportions of the women and men who voted for a particular candidate. The first video showed how to calculate the mean and...

Video multiplying two numbers in scientific notation. Includes brief review of what scientific notation is and a link to additional practice. [5:23]

Video revisits the 2-D divergence theorem to involve mass density and velocity and find the mass exiting the closed curve. [9:28]