Homework Help: MATH

Posted by K. C on Wednesday, May 25, 2011 at 8:14pm.

Find A n B if A={5, 10, 15, 20} and B={10, 2O, 25, 30}

THAT N IS AN UPSIDEDOWN U, DON'T KNOW WHAT THAT MEANS

MATH - Damon, Wednesday, May 25, 2011 at 8:23pm
http://www.solving-math-problems.com/math-symbols-set-intersection.html

It means intersection
which elements are in both sets? (overlap)
5 no
10 yes
15 no
20 yes
25 no
30 no
so
{ 10,20}
MATH - Reiny, Wednesday, May 25, 2011 at 8:30pm
The "upside down U" stands for intersection.
It means that you are looking for all elements which are common to both A and B
A ∩ B = {10,20)

Related Questions

Algebra1 - Please let me know if these are correct. 1. Find: 10% of 30 3 2. Find...
math - Let U = {5, 10, 15, 20, 25, 30, 35, 40} A = {5, 10, 15, 20} B = {25, 30, ...
math - Let U = {5, 10, 15, 20, 25, 30, 35, 40} A = {5, 10, 15, 20} B = {25, 30, ...
Statistics - Create a Histogram of the following data: Interval Frequency 0 &#...
statistics - Let U = {5, 10, 15, 20, 25, 30, 35, 40} A = {5, 10, 15, 20} B = {25...
math - Find A U B if A=(5, 15, 25) and B= (10, 15, 20, 25, 30
stats:find the mean - please help! i know exactly how to find the mean but i am ...
math - If Steven can mix 20 drinks in 5 minutes, Sue can mix 20 drinks in 10 ...
Math - 1. I did it this way, but it doesn't check right 2(10-y)=30 _ _ 2 2 (...
math - Cierra arrived at her dance at 9:05. She waited in the classroom for 10 ...

For Further Reading

First Name:
School Subject:
Answer: