1answer.
Ask question
Login Signup
Ask question
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
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.


 


You might be interested in
Elliot is buying groceries. He buys a bag of apples for 5.54, a loaf of bread for 2.49, and a jar of peanut butter for 3.73. Ell
zloy xaker [14]

Answer:


Step-by-step explanation:

First, you want to add up the subtotal together, so its 5.54+2.49+3.73, and adding those together you get 11.76 as your subtotal. To figure out change, you simply subtract your subtotal to the amount he paid in. For that it is 20-11.76, and that is 8.24

Elliot gets $8.24 in change.

Hope this helps.



7 0
3 years ago
when a pair of shoes is sold at 12.5% discount, the selling price is 78.75. Find the original price of the pair of shoes and the
faltersainse [42]
The original price was 90$ so you saved 11.25$
3 0
3 years ago
A nest of ants has been growing exponentially in such a way that its population, P, as a function of w weeks is given by P(w)=24
Hunter-Best [27]

Answer:

0.9%

Step-by-step explanation:

Given that:

A nest of ant is represented by the exponential growth function :

P(w)=24,000(1.063)^w

Where w = number of weeks

Recall :

Growth function is generally represented as :

P(t) = A(1 + r)^t

Where ; A is the initial population figure; r = growth rate and t = time

Hence, the growth rate per week of the function given is :

(1 + r) = 1.063

r = 1.063 - 1

r = 0.063

Number of days in a week = 7

Hence, growth rate per day = r /7

0.063 / 7

= 0.009

(0.009 * 100%) = 0.9%

8 0
3 years ago
It’s number 1. I’ll give brainliest
tamaranim1 [39]

Answer:

D, The last one

Step-by-step explanation:

Hope this Helps!

5 0
3 years ago
F(x) = -3(x - 11)(x + 1)
il63 [147K]

Answer:

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • The diameter d of a sphere is twice the radius r. The volume of the sphere as a function of its radius is given by v(r)= 4/3(3.4
    10·1 answer
  • Geometry! Please help!
    11·2 answers
  • 16. A train travels at an average speed of 85 miles per hour. If a trip
    8·1 answer
  • The plesiosaur’s stomach had 2.25 kilograms of gastroliths. The largest stone was 0.074 meter long, 0.048 meter wide, and 0.022
    15·2 answers
  • What is 870 divided by 111 as a decimal
    8·2 answers
  • A) SAS <br> B) AAS <br> C) Not enough information<br> D) SSS
    8·1 answer
  • 1<br> What is the slope of the line that passes through (2, 2) and (5,4)?
    5·1 answer
  • What happened
    7·1 answer
  • In the soup can below, the height is approximately 538 inches and the diameter is 3 inches.
    6·1 answer
  • How can I solve this?? Please help
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!