Notes for Homework 6 due Sept. 30

Notes on contingency tables

Notes on interior angle sums and regular angle measures

Notes on death rates and the scale per 100,000 people

Notes on Set Theory
 

Notes for Homework 5, due September 23

Notes on the Richter scale and the bel/decibel system for measuring sound

Notes on Venn diagrams

We will have three sets.

U is the universe, all the things that we will discuss.

A and B are the subsets.

The universe is the rectangle, A and B are the two ovals. A on the left and B on the right.

Example. Let the universe be U = {a, b, c, d, e, f, g}

A = {b, e, a, d}
B = {f, a, c, e}

a and e are in the middle sliver, while b and d are in the left oval and f and c are in the right oval.  The letter g isn't in either list, so it goes outside the circles.

Sorry the picture is hard to read.

Notes for Homework 4, due Mon., Sept. 16

Notes on Heron's formula with practice.

Notes on classifying triangles defined by three side lengths, with practice problems.

Notes on triangles defined by three points in the plane.

Notes for homework 3, due Monday, Sept. 9

Notes on square roots, approximate values and simplified forms

Notes on classifying triangles defined by three angles 
 
Notes on creating isosceles triangles given one or two of the three angles