Khan Academy

Richter scale (K-A)

Basic normal calculations (K-A)

Normal distribution problems: Empirical rule (from ck12.org) (K-A)

Qualitative sense of normal distributions (from ck12.org) (K-A)

Extraneous solutions of radical equations (example 2) (K-A)

Extraneous solutions of radical equations-link (K-A)

Extraneous solutions of radical equations-video (K-A)

Solving cube-root equations (K-A)

Domain of a radical function (K-A)

Graphs of square-root functions (K-A)

Radical functions & their graphs (K-A)

Square-root functions & their graphs (K-A)

Transforming the square-root function (K-A)

Intro to rational expression simplification (K-A)

Intro to rational expressions (K-A)

Intro to simplifying rational expressions (K-A)

Simplifying rational expressions (advanced) (K-A)

Simplifying rational expressions (old video) (K-A)

Simplifying rational expressions: common binomial factors (K-A)

Simplifying rational expressions: common monomial factors (K-A)

Dividing rational expressions (K-A)

Simplifying rational expressions: grouping (K-A)

Dividing rational expressions-link (K-A)

Simplifying rational expressions: higher degree terms (K-A)

Simplifying rational expressions: opposite common binomial factors (K-A)