1answer.
Меню
Ask question
Login
Signup
Ask question
Menu
All categories
English
Mathematics
Social Studies
Business
History
Health
Geography
Biology
Physics
Chemistry
Computers and Technology
Arts
World Languages
Spanish
French
German
Advanced Placement (AP)
SAT
Medicine
Law
Engineering
Sonja
[21]
3 years ago
8
The set of integers is not closed for
Mathematics
Answer
Comment
Send
1
answer:
Brilliant_brown
[7]
3 years ago
4
0
Hello,
N is closed for an opération(µ) means that
a,b ∈ N : a µ b ∈N (i suppose so)
Answer (1) ex 2/3 ∉ N
Answer (4) ex 2-3 ∉ N
∀ a,b ∈ N: a+b ∈N is true ; not a answer.
∀ a,b ∈ N: a*b ∈N is true ; not a answer.
Send
You might be interested in
Estimate each percent. <br> 19% of 51<br> 69% of 203
lyudmila [28]
The answer for
1 - 9.69
2 - 140.07
7
0
3 years ago
Read 2 more answers
Winston is making steaks for his 4 friends. If each steak is 7.7 oz, how much steak is Winston making? Choices are:
sattari [20]
Answer:D
Step-by-step explanation:
6
0
2 years ago
Read 2 more answers
If I want to make some teddy bear slippers and I wear I size 8 in shoes what inch of bear should I get
weqwewe [10]
Answer:
96 inches
Step-by-step explanation:
4
0
3 years ago
Smallest to largest 7/12 1/2 2/3 4/10 1/6
hodyreva [135]
The order is 1/6, 4/19, 1/2, 7/12, 7/12, and 2/3.
5
0
3 years ago
Three oblique pyramids have the same regular square base. Which one has a volume of 15 cubic units if the area
Verizon [17]
Answer:
B
Step-by-step explanation:
5
0
3 years ago
Read 2 more answers
Other questions:
The scale size is 2cm:4m
12
·
2 answers
Please please help me!!
13
·
2 answers
What is the unit rate
9
·
2 answers
Factor –7x3 + 21x2 + 3x – 9 by grouping. What is the resulting expression?
7
·
2 answers
Write the expression as a single natural logarithm 3 ln 2 + 6 y
7
·
1 answer
What decimal is equivalent to 63/75?
15
·
2 answers
A motorcycle daredevil is planning a stunt to perform at a county fair. A ramp must be built to give him a 20%
6
·
1 answer
Find the mode of the following number of countries randomly selected travelers visited in the past two years. 13,13,15,7,8,4,4,7
12
·
1 answer
Please help meee<br><br>−2 4/5÷(−7)=
6
·
2 answers
Sixty students took a math test. The percentages of students who scored an A, B, C, or D are displayed in the circle graph, but
15
·
1 answer
×
Add answer
Send
×
Login
E-mail
Password
Remember me
Login
Not registered?
Fast signup
×
Signup
Your nickname
E-mail
Password
Signup
close
Login
Signup
Ask question!