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Special right triangles

Introduction to 45-45-90 Triangles

Read and interpret a picture graph.ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½

Rounding. Oh my....there will be so many times when rounding numbers (including decimals) will be a required skill. Let's get this down, shall we?

In this example where we subtract decimals we do so up to the thousandths place. It's a little tricky, but not if we do it together.

What makes a question a statistical question?

Sal solves the following system of equations by eliminating x: x-4y=-18 and -x+3y=11.

Equation of a line

Sal solves the following system of equations by eliminating x: x-4y=-18 and -x+3y=11.

Salï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½ï¿½simplifies and states the domain of (2x^2+13x+20)/(2x^2+17x+30).

Sal solves the following system of equations by manipulating it and then eliminating y: 5x-10y=15 and 3x-2y=3.