MAT 142 Problem set

Unit: Sets

Topic: Language of sets

Directions: Solve the following problems. Please show your work and explain your reasoning.

1. The table below shows a collection of high school mascots from Arizona in the Southern Central

Athletic Association:

Mascot School

CRIMINALS Yuma

FROGS Salome

GILA MONSTERS Gila Bend

PHANTOMS Grand Canyon

SABERCATS Sabino

SAND DEVILS Page

SCORPIONS Desert Edge

SIDEWINDERS San Luis

THUNDER Desert Vista

Let set A be the set of mascots that begin with the letter s.

Let set B be the set of mascots that are animals.

Let set C be the set of mascots that have 7 letters or less.

a. Write sets A, B and C using the list/roster method.

b. Write the Universal set U using set builder notation