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Translating expressions with parentheses

Interpret written statements, and write them as mathematical expressions.

Learn how to find the volume of a rectangular prism that has fractional side lengths. The prism in this video has dimensions 3/5 by 1 1/6 by 3/7.

Using a number line, we'll explain the rule of invert and multiply when dividing two fractions.

Think about what probabilities really mean. What does a probability of 0 mean? How about 1?

Sal analyzes a couple of systems of equations and determines whether they have the same solution as a third given system.

Sal analyzes a couple of systems of equations and determines whether they have the same solution as a third given system.

Sal answers a word problem about a vegetable farmer and finds that it has infinite solutions.

Sal explains that if f(a)=b, then f^-1(b)=a, or in other words, the inverse function of f outputs a when its input is b.

Finding the volume and surface area of a cylinder

Sal shows a few examples where he starts with the two legs of a right triangle and he find the trig ratios of one of the acute angles.