A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
Let A = {circle, square} and let B = {3, 4, 5}. Find A X B.
{circle, square, 3, 4, 5}
{ }
{3, 4, 5}
{(circle, 3), (circle, 4), (circle, 5), (square, 3), (square, 4), (square, 5)}
Question 21 (Multiple Choice Worth 1 points)
[3.06]
If f(x) = x^2  1, find f(3).
5
2
8
2
 2 years ago
Let A = {circle, square} and let B = {3, 4, 5}. Find A X B. {circle, square, 3, 4, 5} { } {3, 4, 5} {(circle, 3), (circle, 4), (circle, 5), (square, 3), (square, 4), (square, 5)} Question 21 (Multiple Choice Worth 1 points) [3.06] If f(x) = x^2  1, find f(3). 5 2 8 2

This Question is Closed

Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.0@AccessDenied @baldymcgee6

AccessDenied
 2 years ago
Best ResponseYou've already chosen the best response.21) A x B means the set of all ordered pairs whose first entry is an eement of A and second is an element of B. So, you'll have a set looking something like \(\{(a_1, b_2), \ (a_2, b_2)\}\) etc.

baldymcgee6
 2 years ago
Best ResponseYou've already chosen the best response.1f(x) = x^2  1, find f(3) f(3) = (3)^2 1 f(3) = 91 f(3) = 8

Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.0for the first one is it A?

AccessDenied
 2 years ago
Best ResponseYou've already chosen the best response.2No, A) would simply be the union of the sets. This is represented as "A u B." A x B will have ordered pairs as elements of the set, rather than single items from each set.

Gabylovesyou
 2 years ago
Best ResponseYou've already chosen the best response.0it has to be B or C right?

AccessDenied
 2 years ago
Best ResponseYou've already chosen the best response.2It would be D): {(circle, 3), (circle, 4), (circle, 5), (square, 3), (square, 4), (square, 5)} You can see the ordered pairs: (circle, 3), (circle, 4), etc. consist of one element from A first, and then one element from B second. Basically, A x B is like the set of all combinations of elements from A and B. Would that make sense?
Ask your own question
Ask a QuestionFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.