the respondents, let B be the set of cities that were voted the best by between 10% and 20% of the respondents, and let C denote the set of cities that were voted the best by fewer than 10% of the respondents. Find the following sets. (Let N represent New York, H represent Chicago, T represent Boston, L represent Las Vegas, and S represent San Francisco. Enter your answers using roster notation. Enter EMPTY or ∅ for the empty s

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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In a reader survey conducted by USA Today†, readers were asked to name the best U.S. city for Italian restaurants. The results follow.
City New
York
Chicago Boston Las
Vegas
San
Francisco
Respondents (%) 55 16 15 7 7
Let A denote the set of cities that were voted the best by more than 10% of the respondents, let B be the set of cities that were voted the best by between 10% and 20% of the respondents, and let C denote the set of cities that were voted the best by fewer than 10% of the respondents. Find the following sets. (Let N represent New York, H represent Chicago, T represent Boston, L represent Las Vegas, and S represent San Francisco. Enter your answers using roster notation. Enter EMPTY or ∅ for the empty set.)
(a)
AB, and C?
 

what are  A, B, and C? 

A=

B=

C=

Also what are: 
A ∪ B =
 
 
A ∩ B =
 
 
AC ∩ B = 
 
 
A ∩ BC  = 
 
 
(A ∪ B)C  = 
 
 
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