Respond to this Question
Similar Questions

Math
Decide whether or not the set is closed under addition. {0, 1} A) Closed B) Not closed
asked by Annonom on May 19, 2010 
math
Decide whether or not the set is closed under addition. { 2, 4, 6, 8, . . .}
asked by Meg on November 22, 2009 
Math
If a set of closed under addition, must it also be closed under multiplication? explain your answer or give a counterexample
asked by Kelley on October 16, 2017 
Algebra I
Tell whether the set is closed under the operation. If it is not closed give an example that shows that the set is not closed under the operation. 10. Positive irrational numbers; division 11. Negative rational numbers;
asked by Anonymous on October 26, 2017 
math
Given: f(closure(A)) subset of closure(f(A)) Prove: For any closed set A in Y, f^1(A) is closed in X (AKA f is continuous) X and Y are metric spaces f: X > Y f^1 is f inverse. closure(A) = A U limit points of A The first line
asked by gemma on April 14, 2013 
Math
Can someone explain to me.... when you are graphing number sets.... when do you use open/ closed cirles.... When do you use arrows?... What are intergers??? Thanks, ummm kbye
asked by Capi on September 13, 2006 
algebra
consider the following polynomials. ab^2 +3ab+8a^2 and 5ab^2 Use the two polynomials to illustrate the following: a. polynomials are closed under addition. b. polynomials are closed under subtraction. c. polynomials are closed
asked by Hyewon on January 14, 2019 
6TH GR. ALGEBRA
EXTENDING THE LESSON If you add any two rational numbers, the sum is always a rational number. So, the set of rational numbers is closed under addition. Is the set of rational numbers closed under subtraction. multiplication,and
asked by Amelia on December 16, 2009 
Math
1. You are watching a stock and it closed at $8.41. The next day, it closed at $12.36. What is the percent change? Answer: idk this one. Help? 2.From the question above, the stock closed at $6.56 the day after it closed at
asked by Anonymous on June 6, 2018 
real analysis
Arbitrary union of closed set is closed Prove or disprove
asked by Neha on August 27, 2016