Set theory

 $D=\left\{composite\ numbers\ between\ 40\ and\ 48\right\}$  
Describe set D by using set-builder notation!

•  $D=\left\{x:\ 40<x<48,\ x\in composite\ number\right\}$  

•  $D=\left\{x:\ x\in composite\ number,\ 40\le x\le48\right\}$  

•  $D=\left\{x:\ 41<x<47,\ x\in composite\ number\right\}$  

•  $D=\left\{x:\ x\in composite\ number,\ 40<x\le48\right\}$  

 $M$  is the set of all prime numbers divisible by 3. Describe  $M$   by listing its members!

•  $M=\left\{3,6,9,12,\cdots\right\}$  

•  $M=\left\{2,3\right\}$  

•  $M=\left\{3\right\}$  

•  $M=\left\{3,5,7,9\right\}$  

Tags

CCSS.4.OA.B.4

P is the set of all letters in the word "AUSTRALIA" . Describe P by listing its members!

• $P=\left\{A,U,S,T,R,L,I,A\right\}$

• $P=\left\{A,U,\ S,\ T,\ R,\ I\right\}$

• $P=\left\{A,U,\ T,R,L,\ I\right\}$

• $P=\left\{U,S,R,T,A,I,L\right\}$

Tags

CCSS.L.1.5A

CCSS.L.1.5B

CCSS.L.K.5A

The set of prime numbers between 10 and 30 is ...

• $\left\{11,13,15,17,19,21,23,25,27,29\right\}$

• $\left\{11,13,17,19,23,27,29\right\}$

• $\left\{11,13,17,19,23,29\right\}$

• $\left\{11,13,17,23,29\right\}$

Tags

CCSS.4.OA.B.4

The set of prime number(s) which is(are) evenly divisible by 2...

• $\phi$

• $\left\{0\right\}$

• $\left\{2\right\}$

• $\left\{2,19\right\}$

The set of natural numbers

• Null set

• Unit set

• Finite set

• Infinite set

The set of letters in the English alphabet

• Null set

• Unit set

• Finite set

• Infinite set

The set of airplanes in the sky right now

• Null set

• Unit set

• Finite set

• Infinite set

The set of all the numbers between 0 and 1

• Null set

• Unit set

• Finite set

• Infinite set

What is a set?

• A method of solving problems

• A collection of objects

• A 2-D shape

• {7}