What is the meaning of natural numbers are closed under addition?

Answers

Answer 1

Its means that the addition of natural numbers obeys the closure property.

In mathematics, the closure property is a property that states that if a set is combined with all its limit points, then the combined set is also a limit point. The closure property applies to sets of real numbers, vectors, and matrices. It states that the closure of a set is itself, i.e., the set is closed under the given operation. The phrase "closed under addition" means that when two natural numbers are added together, the result is also a natural number. In other words, natural numbers are part of a closed system concerning addition; the addition operation always produces another natural number.

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Related Questions

What is the smallest whole number that rounds to 80 when rounded to the nearest 10.

Answers

75 if i understood correctly

Find the value of each expression.
5[(46-14) +4] Note divide by 4.
O 13
O 213
O 227
O 40

Answers

By solving the equation 5[(46 - 14) / 4] we will get 40 as the answer

What is BODMAS?

The abbreviation BODMAS is used to assist pupils recall the order of mathematical operations - the right sequence in which to solve maths problems. BODMAS is an acronym that stands for B-Brackets, O-Orders (powers/exponents or roots), D-Division, M-Multiplication, A-Addition, and S-Subtraction.

Solution:

5[(46 - 14) / 4]

We will solve the round brackets first

5[ 32 / 4 ]

Now we will solve the square bracket

5 * 8 = 40

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A company finds that its advertising costs increased from 72000 to 76680 in a year. What was the rate of increase?

Answers

Using the percentage increase formula, we know that the rate of increase in the advertising cost of the company is 93.5%.

What is the percentage?

In mathematics, a percentage is a number or ratio that is expressed as a fraction of 100.

The percent symbol, "%," is widely used to denote it even if the abbreviations "pct," "pct," and rarely "pc" are also employed.

A% is a number that has neither dimensions nor a defined unit of measurement.

For instance, if you properly answered 75 out of 100 questions on a test, you would have received a 75% grade (75/100).

So, the percentage increase formula:

% increase: original - increase/original * 100

Increase: 76680-72000 - 4680

Now, substitute values as follows:

% increase: original - increase/original * 100

% increase: 72000 - 4680/ 72000* 100

% increase:93.5

Therefore, using the percentage increase formula, we know that the rate of increase in the advertising cost of the company is 93.5%.

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1. what happened when you pressed on the balloon stretched over the jar? what does this result represent?

Answers

The balloon will be collapsed due to the excess pressure.

what happened?

if we press on a balloon that is already filled by air stretched over the jar, the air of the jar will enter the balloon and create excess pressure beyond its tolerance and finally the balloon will be collapsed.

what we understand by the result?

as the air-filled balloon is pressed directly over a jar, there is no way to leakage of air, besides the air of jar enter the balloon causes high pressure on the wall of balloon and finally it is destroyed. The result represents the presence of gases inside any empty bottle as well as any jar.

hence, we understand that every empty jar or bottle has gaseous substances with them.

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A model boat i 15 inche long if the boat i bulit to a cale of 1 : 250 inche how long i the real boat
define a variable
write a porortion
olve the porportion
anwer with word

Answers

If the scale of drawing is 1 inches : 250 inche and the real horse height is 15 inche, then the height of the horse in drawing is 0.06 inches.

What does a scale look like in math?

The ratio that describes the relationship between the true figure itself and model is called the scale. It serves as a representation of the real statistics in smaller units on maps. A scale of 1:5, for instance, indicates that 1 on the map is approximately the size of 5 in the actual world.

Briefing:

The scale of drawing the horse = 1 inch :

Therefore in scale

Horse height in drawing equals one inch

The  height of the horse = 250 inche

The original height of the horse = 15 inche

The height in the picture = x inches

To find the height the horse in the picture, we have to use proportion

1 inch : 250 inche = x inches : 15 inche

1 / 250 = x / 15

1 × 15= 250x

250x = 15

x = 15/250

x = 0.06 inches

Therefore, the height of the horse in drawing is 0.06 inches

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What is the greatest common factor of 78 and 41

Answers

Answer:

1

Step-by-step explanation:

41 is prime, so its only factors are 1 and 41.

Since 1 is a factor of 78 but 41 isn't a factor of 78, the greatest common factor is 1.

12. How could you write a system of inequalities using the quadratic functions in
the graph so that (6, 6) is a solution to the system but (6, -6) is not a solution to
the system.

Answers

Answer:

To write a system of inequalities that has the point (6, 6) as a solution but not (6, -6), we can use the fact that the point (6, 6) is above the graph of the quadratic function, but the point (6, -6) is below the graph. Therefore, we can write a system of inequalities that includes the condition that the y-value must be greater than the value of the quadratic function at a given x-value.

For example, we could use the quadratic function y = x^2 and write the following system of inequalities:

y > x^2

y > 6

The first inequality states that the y-value must be greater than the value of the quadratic function at a given x-value. The second inequality is added to ensure that the y-value is greater than 6, which is necessary for the point (6, 6) to be a solution.

Since the point (6, 6) satisfies both of these inequalities, it is a solution to the system. However, the point (6, -6) does not satisfy the first inequality, since the y-value is less than the value of the quadratic function at x = 6. Therefore, it is not a solution to the system.

Overall, the system of inequalities would be as follows:

y > x^2

y > 6

Kaylon shaded the thermometer to represent a temperature of degrees below zero Celsius as shown in the diagram. Is she correct? Therm

Question 5 options:

A: She incorrect because she should have shaded in °


B: She is correct because she shaded a temperature of -°C.


C: She is incorrect because she shaded a temperature of −°.

Answers

Using logical reasoning, we can say that (C) Kaylon is wrong because the shaded temperature is -° according to the given image.

What is logical reasoning?

In addition to formal deduction, two more categories of logical thinking are frequently distinguished: induction and abduction.

The following can be explained if one has a precondition or premise, a conclusion or logical consequence, and a rule or material conditional that indicates the conclusion given the precondition.

Mathematical logic and philosophical logic are frequently used to support the claim that "when it rains, objects outside become wet.

The grass is outside, therefore: when it rains, the grass gets wet."

A finding of the rule is supported by inductive reasoning.

So, according to the given, we can easily guess that Kaylon is wrong because the shaded temperature is -°.

Therefore, using logical reasoning, we can say that (C) Kaylon is wrong because the shaded temperature is -° according to the given image.

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Fatima conducts emissions inspections on cars. She finds that 6\%6%6, percent of the cars fail the inspection. Let ccc be the number of cars fatima inspects until a car fails an inspection. Assume that the results of each inspection are independent.

Answers

The probability that the first failed inspection occurs on Fatima's 5th inspection i.e P(c = 5) is 0.05..

Geometric probability distribution:

In probability and statistics,the geometric distribution defines the probability of the first success occurring after k trials. The probability of success is p

P r ( X = k ) = ( 1 − p )¹ p.

We have given that,

An emissions inspections on cars is conducted by Fatima.

Probability that car fail the inspection, p = 6% = 0.06

let c denoted the number of cars that are inspected until one car fail to inspection.

The random variable c here. Here c follow geometric probability distribution with probability of success (0.06).

Plugging all known values in above formula we get, p(c= 5) = (1-0.06)⁴ × 0.06

= (0.94)⁴ (0.06)

=0.0468449376~ 0.05

so, the answer is 0.05

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Complete question:

Fatima conducts emissions inspections on cars. She finds that 6%, percent of the cars fail the inspection. Let C be the number of cars Fatima inspects until a car fails an inspection. Assume that the results of each inspection are independent.

Required:

Find the probability that the first failed inspection occurs on Fatima's 5th inspection

What does AAS and ASA mean?

Answers

Here AAS  means Angle-Angle-Side whereas ASA means Angle-Side -Angle.

Here AAS stands for Angle-Angle-Side it depicts that when two angles and a non-included side of a triangle are equal to the comparing angles and sides of another triangle, at that point the triangles are said to be congruent. whereas the ASA stands Angle-Side-Angle, where  If any two angles and the side included between the angles of one triangle are identical to the comparing two angles and side included between the angles of the second triangle, at that point, the two triangles are said to be consistent by ASA rule.

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100 POINTS ILL GIVE BRAINLIEST PICTURE BELOW

Answers

Answer:

The correct answer is B. looking for work/total work force.

Unemployment rates are typically calculated by dividing the number of people who are looking for work by the total work force. The work force includes all people who are currently employed or actively looking for work, regardless of whether they are currently employed. The number of people who are looking for work is determined by surveying individuals and asking them whether they are currently seeking employment. The unemployment rate is then calculated by dividing the number of people who are looking for work by the total work force, and expressing this as a percentage.

The other answer choices are not accurate ways of calculating unemployment rates. Dividing the total work force by the number of layoffs (A) would not give an accurate measure of unemployment, as it would not account for people who are looking for work but have not been laid off. Dividing the number of people looking for work by the total population (C) would also not be an accurate way of calculating unemployment, as it would not take into account people who are not part of the work force (e.g. children, retirees, etc.). Therefore, the correct method for calculating unemployment rates is to divide the number of people looking for work by the total work force.

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

The unemployment rate for any area is the number of area residents without a job and looking for work divided by the total number of area residents in the labor force.

What is a, b, and c in 3x2 + 4 = 5x

Answers

Answer:

Subtract

5

x

from both sides of the equation.

3

x

2

+

4

5

x

=

0

Once the quadratic is in standard form, the values of

a

,

b

, and

c

can be found.

a

x

2

+

b

x

+

c

Use the standard form of the equation to find

a

,

b

, and

c

for this quadratic.

a

=

3

,

b

=

5

,

c

=

4

Step-by-step explanation:

Solve the equation for

x

by finding

a

,

b

, and

c

of the quadratic then applying the quadratic formula.

x

=

5

±

i

23

6

How do you graph a rational function example?

Answers

To graph a rational function example, start by writing the equation in the form y = (ax + b)/(cx + d).

Then, plot the points where the denominator equals zero (when x = -d/c). These points are called vertical asymptotes.Next, plot the points where the numerator equals zero (when x = -b/a). These are called horizontal asymptotes.Finally, plot points between the vertical and horizontal asymptotes to graph the rational function.Plotting the points between the vertical and horizontal asymptotes will allow you to see the shape of the graph. Start by plotting points on either side of the vertical and horizontal asymptotes. Then, plot points at evenly spaced x-values between the vertical and horizontal asymptotes. For example, if the vertical asymptote is at x=-d/c, and the horizontal asymptote is at x=-b/a, you can plot points at x=-1.5d/c, x=-0.5d/c, x=-1.5b/a, and x=-0.5b/a. By plotting these points and connecting them with a smooth curve, you can graph the rational function.

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A kangaroo hops 9 kilometers in 3 minutes. at this rate how far does the kangaroo travel in 2 minutes

Answers

Answer: If a kangaroo hops 9km in 3 minutes, that means he runs 3km every minute, which we can multiply by 2 in order to get 6km in the first 2 minutes. [EXTRA: In one hour, the kangaroo can hop 180km, which means his top speed is 180km/h without accounting for fatigue]

Step-by-step explanation: a

please hurry

The graph describes profit of necklace sales. Which best describes the domain in context?




Question 13 options:


all real numbers



all whole numbers greater than or equal to 0



all real numbers greater than or equal to 0



all whole numbers greater than 1

Answers

By using function, it can be concluded that

The domain of the function is all real numbers greater than zero.

What is a function

A function from A to B is a rule that assigns to each element of A a unique element of B. A is called the domain of the function and B is called the codomain of the function.

There are different operations on functions like addition, subtraction, multiplication, division and composition of functions.

Here the values on the horizontal axis is the domain and the values on the vertical axis is the range.

From the graph, it can be seen that the function is defined for all real numbers greater than or equal to zero.

So the domain of the function is all real numbers greater than zero.

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A group of friend want to go to the amuement park. They have no more than $80 to pend on parking and admiion. Parking i $14. 75, and ticket cot $11. 25 per peron, including tax. Write and olve an inequality which can be ued to determine xx, the number of people who can go to the amuement park

Answers

Using the provided conditions and rule of inequality, The required expression is 11.25x + 14.75 <=80.

What do you mean by inequality equation?

Both mathematical phrases, equations and inequalities, are created by connecting two expressions.

What are the different types of equations?

The Different Types of Equations are:

Linear Equation.Radical Equation.Exponential Equation.Rational Equation.

x= number of friends

Total parking cost = 14.75

Total ticket cost =11.25x

Total money = 80

Since, The total money to be spend can't cross $80, The inequality is given by 11.25x + 14.75 <= 80

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Determine if the following system of equations has no solutions, infinitely many
solutions or exactly one solution.
-3x + 4y = -5
-6x+8y= -10

a. One Solution
b. No Solutions
c. Infinitely Many Solutions

Answers

The system of Linear Equation has Infinitely Many Solutions

What is Linear Equation in Two Variables?

A linear equation in two variables is one that is stated in the form ax + by + c = 0, where a, b, and c are real integers and the coefficients of x and y, i.e. a and b, are not equal to zero.

Solution:

To check the numebr we need to find the vaules of

a1/a2, b1/b2, c1/c2

a1/a2 = -3/-6 = 1/2

b1/b2 = 4/8 = 1/2

c1/c2 = -5/-10 = 1/2

Since the values of a1/a2 = b1/b2 = c1/c2

Theerefore, the system of Linear Equation has Infinitely Many Solutions

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Estimate each product to the nearest whole number. Then, find the product. 0.7 x 0.85

Answers

The product to the nearest whole number is equivalent to zero.

What is multiplication?Multiplication is one of the four basic arithmetic operations, alongside addition, subtraction, and division. In math, multiply means the repeated addition.

Given is to write the product (0.7 x 0.85) to the nearest whole number.

We have the product as -

0.7 x 0.85

(7/10) x (85/100)

(7/10) x (17/100)

119/1000

0.119

0.12

0.1

0

Therefore, the product to the nearest whole number is equivalent to zero.

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The gas tank of a car holds 15.9 gallons. If it required 12.2 gallons to fill the tank, how many gallons were still in the car before it was filled up?

Answers

Answer: 3.7

Step-by-step explanation: 15.9-12.2=3.7

-5/6x - 7/30x + 1/5x= -52

what is x

x=?

Answers

The answer is x = 60

The value of 'x' is 60.

We are given with [tex]\frac{-5}{6}x-\frac{-7}{30}x+\frac{1}{5}x=-52[/tex]

⇒ [tex]\frac{-25x-7x+6x}{30}=-52[/tex]

⇒ [tex]\frac{-26x}{30}=-52[/tex]

⇒ [tex]x = 2 \times 30[/tex]

[tex]\therefore x=60[/tex]

So the value of 'x' is 60.

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The circumference of a circle is 20 pi inches, Whats its area

Answers

Answer: 100 pi, or 314.15926...

Step-by-step explanation:

The circumference is 2r pi. r is 10. The area is r squared pi. 10 squared in 100, so 100 pi.

I need help this can someone help me thank you

Answers

The linear equation 8(u + 6) = 24 has a solution of u = -3

Linear Equation

A linear equation is an algebraic equation where each term has an exponent of 1 and when this equation is graphed, it always results in a straight line.

In the given question, we are required to solve the linear equation following some steps.

Step one

8(u + 6) = 24

This is the given equation

Step two

8u + 48 = 24

This done using distributive property

Step Three

8u + 48 - 48 = 24  - 48

This is done using subtraction property

Step four

8u = -24

This done using collection of like terms

Step five

8u / 8 = -24 / 8

This is done using division property

u = -3

This is the answer to the question

The solution of the linear equation is - 3

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pls help me out!! I'd appreciate it

Answers

Answer:

I believe it is C.

Step-by-step explanation:

Solve the following compound inequality 5x+7<3or3x-4>11

Answers

The solution range of the inequality {5x+7<3  and  3x-4>11} to is in range : x < -4/5 or x > 5.

What is an Inequality? What is a expression? What is a mathematical equation? An inequality in mathematics compares two expressions, showing if one is less or greater than, or simply not equal to another value.A mathematical expression is made up of terms (constants and variables) separated by mathematical operators.A mathematical equation is used to equate two expressions. Equation modelling is the process of writing a mathematical verbal expression in the form of a mathematical expression for correct analysis, of the given problem.

Given are the following inequalities -

5x+7<3  and  3x-4>11

We have -

5x + 7 < 3

5x < - 4

x < -4/5

and

3x - 4 > 11

3x > 15

x > 5

So, we can write the solution of the inequality as -

x < -4/5 or x > 5

Therefore, the solution to the inequality is in range : x < -4/5 or x > 5.

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Plis help me here :(

Answers

The function f(x) = -7x + 22 and g(x) is f(x) translated up 5 thus option (D) is correct.

What is the transformation of a graph?

Transformation is rearranging a graph by a given rule it could be either increment of coordinate or decrement or reflection.

Reflection is a mirror image of a graph about any axis.

If we reflect any graph about y = x then the coordinate will interchange it that (x,y) → (y,x).

As per the given table,

The function f(x) = -7x + 22 is satisfying the table.

For example at x = 2

f(2) = -7 x 2 + 22 = 8

Now, since, g(x) = f(x) + 5 thus g(x) is translated up to 5 units.

Hence "The formula f(x) = -7x + 22 and the translation of f(x) up 5 is g(x).".

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Suppose that P(E) = 0.85, P(F) = 0.40, and P(E and F) = 0.30.
Calculate P(F|E).

Answers

By using the concept of probability, it can be calculated that-

P(F|E) = [tex]\frac{P(F \ and \ E)}{P(E)} = \frac{6}{17}[/tex]

What is probability?

Probability gives us the information about how likely an event is going to occur

Probability is calculated by Number of favourable outcomes divided by the total number of outcomes.

Probability of any event is greater than or equal to zero and less than or equal to 1.

Probability of sure event is 1 and probability of unsure event is 0.

Here P(F|E) means probability of happening of event F knowing event E will happen

P(E) = 0.85, P(F) = 0.40, and P(E and F) = 0.30.

P(F|E) = [tex]\frac{P(F \ and \ E)}{P(E)} = \frac{0.30}{0.85} = \frac{6}{17}[/tex]

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Cadence has a collection of 52 dolls that all have either blue-eyes or green-eyes. Cadence has 16 more blue-eyed dolls than green-eyed dolls. How many green-eyed dolls does Cadence have? How many blue-eyed dolls?​

Answers

Answer:

18 green eyed dolls and 34 blue eyed dolls

Step-by-step explanation:

Cadence has a total of 52 dolls, either green eyed or blue eyed so lets take the number of green eyed dolls as g and the number of blue eyed dolls as b. So you have

b + g = 52

also we know b is 16 greater than g so

b - 16 = g

transpose 16 & g

b - g = 16

Now we add the equations

b+g = 52

b-g = 16

______

2b = 68

(+g and -g cancel each other out)

so b = 34

If we put 34 into an earlier equation

34 + g = 52

g = 52 - 34

g= 18

If the tree grows an additional 10 feet, what is the new angle of elevation from the point 25 feet from the base of the tree to the top of the tree?.

Answers

Angle of elevation for the tree grows an additional 10 feet, what is the new angle of elevation from the point 25 feet is angle of elevation 47.1 degree.

Angle of elevation is the elevation in the height of angles from a given points.

Length of tree = 10 feet

Angle of elevation = 25 degreesEquation for the peak of tree=?Let x constitute the peak.We recognize that tan Phi = Perpendicular / B * asetan = peak of tree/ duration of basetan Phi = x / l=>x=I^ * (tan phi)x=10 ^ * tan(25 deg)Now, setting values:x=10 ^ * tan(25 deg)x =10 ^ * 0.4663x = 14.43feetSo, the equation to discover the peak is: x = 10 * tan(25 deg) and the peak is x = 47. 1 degree.

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pls help

Shown below are the scatter plots for four different data sets.
Answer the questions that follow. The same response may be the correct answer for more than one question

Answers

1. Figure 3
2. Figure 1
3. Figure 4

A solid dressing recipe includes 4/5 cup of lime juice for every 2 cups of Greek yogurt. How many cups of lime juice does Marquez need for 3 cups of Greek yogurt?

Answers

Answer:

1 1/5

Step-by-step explanation:

So first we need to realize that 4/5 can be turned into 8/10. Plus since they need 3 cups, not 2 (which we have been provided with the cups for) then we have to split it in half. So it would be 8/10 + 4/10. Which is 12/10 or 1 2/10 or 1 1/5

Hope this makes sense!!!

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