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
Elanso [62]
3 years ago
12

Describe in your own words what it means to say that integers are closed under addition? (please help I don't get this question)

Mathematics
1 answer:
Naddik [55]3 years ago
8 0

A set  that is closed under an operation or collection of operations is said to satisfy a closure  

property.

For example, the set of even integer is closed under addition, but the set of odd integer is not.  


You might be interested in
If QS bisects PQT, SQT=(8x- 25),PQT=(9x+34), and SQR=112, find each measure.
Goryan [66]

The values of the angles are; x = 12°, m∠PQS = 71°, m∠PQT = 142° and m∠TQR = 41°

<h3>What are the measure of the each angle?</h3>

The required angles; x, m∠PQS, m∠PQT, and m∠TQR

The given parameters are bisects ∠PQT

m∠SQT = (8·x - 25)°

m∠PQT = (9·x + 34)°

m∠SQR = 112°

We have;

m∠PQT = m∠SQT + m∠PQS (Angle addition postulate)

m∠SQT ≅ m∠PQS (Angles formed by angle bisector are congruent)

m∠SQT = m∠PQS  by Definition of congruency

m∠PQT = 2 × m∠SQT

Therefore;

(9·x + 34)° = 2 × (8·x - 25)° = (16·x - 50)°

Collecting like terms gives:

(34 + 50)° = 16·x - 9·x = 7·x

7·x = 84°

x = 84°/7 = 12°

x = 12°

m∠SQT = (8·x - 25)°

Therefore;

m∠SQT = (8 × 12 - 25)° = 71°

m∠SQT = 71°

m∠PQT = 2 × m∠SQT

∴ m∠PQT = 2 × 71° = 142°

m∠PQT = 142°

m∠PQS = m∠SQT (Angles formed by the same bisector )

∴ m∠PQS = m∠SQT = 71°

m∠PQS = 71°

m∠SQR = m∠SQT + m∠TQR (Angle addition postulate)

m∠SQT = 71°

∴  m∠SQR = 112° = 71° + m∠TQR

m∠TQR = 112° - 71° = 41°

m∠TQR = 41°

Learn more about angles here:

brainly.com/question/2882938

#SPJ1

4 0
1 year ago
Find the volume ( b= 10 cm , w= 12 cm , h= 12 cm ) A. 480 B. 144 C. 240 D. 1440
vova2212 [387]

Answer:

D.1440

Step-by-step explanation:

V=lxwxh

10x12x12

1440

8 0
2 years ago
Read 2 more answers
2y-3[3-4(y-5)+2(1-3y)]
soldi70 [24.7K]

Answer:

- 75 - 32y

Step-by-step explanation:

2y-3[3-4(y-5)+2(1-3y)]

= 2y - 3(3 - 4y + 20 + 2 - 6y)

= 2y - 3(25 - 10y)

= 2y - 75 - 30y

= - 75 - 32y

Brainliest???

4 0
2 years ago
Read 2 more answers
What does write two addition sentences where the sum is zero mean
Alex777 [14]
Pretty much, write two problems that equal to 0
6 0
2 years ago
Read 2 more answers
6.15 divided by 31 rounded
nikdorinn [45]
It would be (rounded) 5
Because
31 / 6.15 = 5.04065

Hope this helped

Have a great day/night
7 0
3 years ago
Other questions:
  • 3. If P (A) = 0.2 and P (B) = 0.3 and A and B are disjoint, what is P (A or B)?
    15·1 answer
  • The length of a rectangular window is 5 feet more than its width, w. The area of the
    12·1 answer
  • What are the solutions of 4x - 9 2?
    9·2 answers
  • The salsa recipe uses green pepper, onion and tomato in the extended ration 3:7:11. How many green peppers are needed to make 18
    10·2 answers
  • HELP me please!!!!!!
    8·1 answer
  • 18. © MP.2 Reasoning A club collected
    7·1 answer
  • Factor and\or expand the following expression : 3(2x + w)
    13·2 answers
  • Two groups of students order burritos and tacos at a local restaurant. One order of 3 burritos and 4 tacos costs $11.33. the oth
    14·1 answer
  • Factorize (4y-5)²+80y ​
    9·2 answers
  • Solve for x for both of these plssss i need help
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!