Answer:
(i) La sustracción de números naturales no es cerrada, puesto que no existe el resultado cuando el minuendo en menor que el sustraendo, es decir:
[tex]2 - 5 = -3, -3\notin \mathbb{N}[/tex]
(ii) La sustracción de números naturales no es conmutativa, pues al cambiar las posiciones entre minuendo y sustraendo, se pasar de un resultado contenido en [tex]\mathbb{N}[/tex] a uno no contenido en ese cuerpo. Es decir, el resultado cambia. Es decir:
[tex]5 - 2 = 3[/tex]
[tex]2 - 5 = -3, -3\notin \mathbb{N}[/tex]
(iii) La sustracción de números naturales no asociativa, pues al cambiar la posición de los paréntesis, puede llevar a un resultado distinto o inexistente en [tex]\mathbb{N}[/tex] debido a que el signo afecta a todo lo que está adentro del paréntesis. Es decir:
[tex](6-4) - 1 = 2 - 1 = 1[/tex]
[tex]6 -(4-1) = 6-3 = 3[/tex]
(iv) No tiene elemento neutro pues el neutro aditivo, léase 0, no pertenece a [tex]\mathbb{N}[/tex].
Step-by-step explanation:
(i) La sustracción de números naturales no es cerrada, puesto que no existe el resultado cuando el minuendo en menor que el sustraendo, es decir:
[tex]2 - 5 = -3, -3\notin \mathbb{N}[/tex]
(ii) La sustracción de números naturales no es conmutativa, pues al cambiar las posiciones entre minuendo y sustraendo, se pasar de un resultado contenido en [tex]\mathbb{N}[/tex] a uno no contenido en ese cuerpo. Es decir, el resultado cambia. Es decir:
[tex]5 - 2 = 3[/tex]
[tex]2 - 5 = -3, -3\notin \mathbb{N}[/tex]
(iii) La sustracción de números naturales no asociativa, pues al cambiar la posición de los paréntesis, puede llevar a un resultado distinto o inexistente en [tex]\mathbb{N}[/tex] debido a que el signo afecta a todo lo que está adentro del paréntesis. Es decir:
[tex](6-4) - 1 = 2 - 1 = 1[/tex]
[tex]6 -(4-1) = 6-3 = 3[/tex]
(iv) No tiene elemento neutro pues el neutro aditivo, léase 0, no pertenece a [tex]\mathbb{N}[/tex].
What is mean point in math?
A point in mathematics is symbolised by a dot (.) and used to indicate an accurate location in space. It lacks all three dimensions—length, breadth, and height. It has no size, in other terms.
Different Points
In geometry, there are several distinct kinds of points:
Converging Points
Collinear refers to something that is parallel. If three or more points lie on a single straight line, they are said to be collinear.
Incongruent Points
If three or more points do not lie on the same line, they are said to be non-collinear. There isn't a single straight line that can be drawn that goes through each of these points.
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The Christmas Tree store has a parking lot that will
hold 1000 vehicles. 2/5 of the parking spaces are
for cars. When you went to buy your tree, there
were 200 cars and some trucks in the parking lot.
The parking lot was 3/4 full. How many trucks were
in it?
Answer:
550
Step-by-step explanation:
3/4 x 1000 = 750
The parking lot has 750 cars and trucks. Subtract out the 200 cars and we are left with 550 trucks.
Select the equivalent expression.
(3^4 / 7^3)^3 =?
The equivalent expression is (3⁴/7³)³ = 3¹²/7⁹
Define Power Rule for Exponents
The Power Rule for Exponents: (aⁿ)ˣ= aⁿ*ˣ .
To raise a number with an exponent to a power, multiply the exponent times the power.
Negative Exponent Rule: x⁻ⁿ = 1/xⁿ.
Given expression is,
(3⁴/7³)³
We need to find equivalent expression,
⇒ (3⁴/7³)³
first, split up exponent 3 to both Numerator and denominator as ,
⇒ (3⁴)³ / (7³)³
Now, power of a power can be done as product as,
⇒ 3¹² / 7⁹
Hence,the equivalent expression is (3⁴/7³)³ = 3¹²/7⁹
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A nonhomogeneous equation and a particular solution are given. Find a general solution for the equation.y''-y'=t, yp(t)=-tAnswer: y= -t+c1et+c2e-t but how?Thank you
The general solution of the given nonhomogeneous equation is [tex]y(t)=c_{1} e^{-t} +c_{2}e^t-t[/tex]
When the vector of constants to the right of the equals sign is not zero, an equation system is said to be non-homogeneous. A broad description of the solutions to a non-homogeneous system is presented in this solution.
General solution for the equation: [tex]y''-y'=t[/tex] , [tex]yp(t)=-t[/tex]
Consider the equation [tex]y''-y'=t[/tex]. The corresponding homogeneous equation has the associated auxiliary equation [tex]r^2-1=0[/tex] which has [tex]r= -1[/tex] and [tex]r=1[/tex] as solutions.
The solution of an n[tex]^{th}[/tex]-order differential equation or difference equation depends on an algebraic equation of degree n called the characteristic equation (or auxiliary equation) in mathematics.
Hence the general solution for a homogeneous equation is [tex]y(t)=-t+c_{1}e^t+c_{2}e^-t[/tex]
Combining the general solution [tex]y(t) = c_{1}e^t+c_{2}e^t[/tex] of [tex]y"-y'=0[/tex] with the particular solution [tex]y_{p}(t)=-t[/tex] of [tex]y"-y'=t[/tex], we find that the general solution to [tex]y"-y'=t[/tex] is [tex]y(t)=c_{1}e^-t+c_{2}e^t-t[/tex]
The general solution of the given nonhomogeneous equation is [tex]y(t)=c_{1} e^{-t} +c_{2}e^t-t[/tex]
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Your manufacturing requires parts to go sequentially through process a, b, and c. A machine can do process a in 1 minute, b in 2 minutes, and c in 3 minutes. You have two a machines, one b machine, and three c machines. Which process is the bottleneck (can produce the fewest items per unit time)? a) process a b) process b c) process c.
Answer:
b) process b
Step-by-step explanation:
You have 2 of machine A, each of which can do its process in 1 minute; 1 of machine B, which takes 2 minutes to do its process; and 3 of machine C, each of which takes 3 minutes to do its process.
Production quantitiesIn 6 minutes, the 2 of machine A can produce 2 × 6/1 = 12 units.
In 6 minutes, the 1 of machine B can produce 1 × 6/2 = 3 units.
In 6 minutes, the 3 of machine C can produce 3 × 6/3 = 6 units.
Process B produces the fewest units in equivalent time, so process b is the bottleneck.
__
Additional comment
The production quantity of a given machine is ...
(production time)/(time/unit) = units
This will be multiplied by the number of machines doing the process.
For comparison purposes, we used a production time of 6 minutes here.
What is the formula for 3 consecutive numbers?
The formula for 3 consecutive numbers is n + 1, n + 2, and n + 3, where n is an integer.
Consecutive numbers are those that always appear in the same order, from smallest to largest.
For instance:
The numbers 1, 2, 3, 4, 5, 6, and so on are consecutive.
(n + 1) and (n + 2) will be the next two consecutive integers if n is an integer. Let n, for instance, be 1. Its consecutive integers are either 2 or 3, or 1 + 1 + 2.
Thus, the formula is:
n, n+1, n+2, n+3,…
consecutive Even Numbers:
The endings of even numbers are 0, 2, 4, 6, or 8. Zero, two, four, six, eight, ten, twelve, and so on are examples of consecutive even numbers.
consecutive Odd numbers:
Numbers that begin with 1, 3, 5, 7, or 9 are considered odd. 1, 3, 5, 7, 9, 11, 13, 15, and so on are examples of consecutive odd numbers.
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How are rigid motions related to congruence?
An object is moved rigidly when it is transferred from one location to another without affecting its size or shape.
What is congruence?
A "matching" figure is one that can be placed perfectly on another. The bread has the same size and form when it is stacked. Match refers to objects that are precisely the same size and form. If one of two geometric figures can be consistently overlaid on the other, they are said to be congruent or to be in a congruent relationship.
An object is moved rigidly when it is transferred from one location to another without affecting its size or shape. Only a precise movement may generate a correspondence between two forms, and only then can two shapes match.
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What is the meaning of whole numbers are closed?
Whole numbers are closed under addition and multiplication. If we add and multiply any two whole numbers, the result will be a whole number.
What are Whole numbers ?
The numbers that include natural numbers and zero. Not a fraction or decimal. {0, 2, 3, 4, 5 6, 7, 8, 9, 10, 11 …} Whereas Integer: A counting number, zero, or the negative.
If we add any two whole numbers, the result will be a whole number. For example, 2 + 4 = 6 and 6 is a whole number.
Therefore, whole numbers are closed under addition.
If we multiply any two whole numbers, the result will be a whole number. For example, 2 × 4 = 8 and 8 is a whole number.
Therefore, whole numbers are closed under multiplication.
Also , Whole numbers are not closed under Subtraction and division.
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Is this the hypotenuse leg or am i wrong
The missing reason in the flowchart would be SAS.
Option (D) is correct.
What is the SAS congruence theorem?
If two sides and the included angle of one triangle are equal to two sides and the included angle of another triangle, the triangles are congruent.
In the given figure,
Side RC ≅ Side TN ---- Given
Side HX ≅ Side XK ----Given
Angle RHK ≅ Side HKN --- Vertical angles are congruent.
Hence, ΔRHX ≅ NKXΔ ----- (SAS congruence)
Hence, the missing reason in the flowchart would be SAS.
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How do you translate an entire triangle?
To translate an entire triangle, find the coordinates of each of the triangle's vertices, add the horizontal translation then plot the three translated points
Whenever an object is moved from one location to the next without changing its size, shape, or orientation, a translation takes place. If we know which way and how far the figure to be moved, we can draw the translation in the coordinate plane.
There are some steps of translating the triangle:
Step 1: Find the coordinates of each of the triangle's vertices in step one.
Step 2: Add the horizontal translation value to each vertex's x-coordinate and the vertical translation value to each point's y-coordinate to translate each point. If the horizontal translation is to the left or the vertical translation is downward for these translations, add a negative number.
Step 3: Plot the three translated points and draw the triangle by drawing a straight line between each pair of points.
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Each month Emily checks her bank statement to make sure it is correct. Identify the error in the bank statement and calculate the new balance.
- Monday, August 13, 2018, Emily received a refund check for $42.73 that was deposited into her account
- Thursday, August 16, 2018, her paycheck of $973.80 was deposited into her account
- Friday, August 17, 2018 she ordered some new songs from iTunes for $25.25
- Monday, August 20, 2018 her mom told her to go to Walmart for groceries and she spent $98.34
What line is perpendicular to line that has a slope of 1 3?
The level of a line's slope indicates its steepness.
A line with a slope of 1/3 has a perpendicular line with a slope of -3. The product of the slope is equal to -1 when two lines are perpendicular.
How do one find the slope of a graph?The slope is computed mathematically as "rise over run" (change in y divided by change in x).
In accordance with the slope equation, the slope of such a line may be determined by dividing the rise of the line between two positions by the run of the same line between the same two sites.
That is to say,
Determine the coordinates of two locations along the line that one choose.Evaluate the differences in these two positions' y-coordinates (rise).Evaluate the differences in these two locations' x-coordinates (run).In order to calculate the difference in y-coordinates (rise/run or slope), divide it by the difference in x-coordinates.To know more about slope refer to:
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How do you tell if a slope is steeper or flatter?
Lines have a larger m value, that is, m > 1 have steeper slope and lines having an m value between 0 and 1, usually in the form of a fraction have a flatter slope .
Slope is the rate of change in the dependent variable with respect to the independent variable.
For an equation of line of the type - y= mx +c , the slope is given by the m value.
Now, if the value of m > 1 like m=1,2,3, ... , the lines have a steeper slope and have a steep nature.
Similarly, if the value of m < 1 i.e. 0 < m < 1 like m=1/2,2/3, ... fractional values, the lines have a flatter slope and do not have a steep nature.
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What is the bibliographic citation?
Bibliographic citations are the headings on your References page that provide links to the sources you used in your essay.
What is a bibliographic citation?The entries on your References page that give directions to the sources you cited in your essay are known as bibliographic citations.
Consider them the "address" of a source since they direct readers to a source you cite.
The author's name, the book's title, the publisher's name, and the publication date must all be included in a book citation.
When cited in full, edited books will list the editor's name rather than the author's name.
The appearance of bibliographies can vary depending on the style manual you are using.
Bibliographies often include the page number, title, and an alphabetical list of all the sources you consulted.
A synopsis of the work is also included in annotated bibliographies.
Therefore, bibliographic citations are the headings on your References page that provide links to the sources you used in your essay.
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I need help with this
Using the concept of functions option A [tex](f-g)(y)=2y^{2}-3y-1[/tex] is true by solving both the functions f(y) and g(y).
What are functions?An association between each element of a non-empty set A and at least one element of a different non-empty set B is called a function. A relation f between a set A (the function's domain) and a set B is how a function is defined in mathematics (its co-domain). For any A and B, f = {(a, b) | for all a ∈ A, b ∈ B}
According to the given question we have given two functions f (y) and g (y), then:
(f - g) (y)=f(y)-g(y)
We have:
[tex]f(x)=5y^{2} -2y+1[/tex]
[tex]g(y)=-3y^{2}-y-2[/tex]
Subtracting both the above functions we have:
[tex](f-g)(y)=2y^{2}-3y-1[/tex]
Hence option A [tex](f-g)(y)=2y^{2}-3y-1[/tex] is true by using the concept of functions.
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Harriett baked 3 cakes. She cut each cake into equal-size pieces. Each piece was 1/ 9 of the cake. What was the total number of pieces after Harriett cut these cakes?
The number of ubcriber to a treaming video ervice double each week. The function f(x)=2x repreent the number of ubcriber in week x. When are there 64 ubcriber?
The value of x is six when f(x) = 64, and there are 64 subscribers completed on a training video service at week 6. So, correct answer is option (A).
What is exponential function?In the exponential function, the independent variable or x-value is the exponent and the base is constant. The exponential formula is y = abˣ, where a and b are constants. For example, y = 2ˣ is exponential.
We have, the number of subscribers of a training video is double each week. The function f(x) represent the number of ubcriber in week x, f(x) = 2ˣ
we have to calculate value of x that is week when f(x) = 64 or there is 64 subscribers. So, 2ˣ = 64 --(*)
Introducing logarithms both sides of equation (*) we get,
=> log (2ˣ) = log 64
=> x log 2 = log 64 (log rule, log aˣ= x log a)
divide both sides by log 2
=> x log 2/log 2 = log 64/log 64
=> x = log 64/log 2 = log (2⁶)/ log 2
=> x = 6 log 2/log 2 = 6
so, x = 6 , Hence, the required week i.e x is 6.
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Complete question:
the number of subscribers to a streaming video service doubles each week. The function f(x)=2^x represents the number of subscribers in a week x. when are there 64 subscribers?
A. week 6
B. week 7
C. week 32
D. week4
Is direct variation the same as slope?
Answer:
Step-by-step explanation:
A direct variation is a linear relationship between variables so they have a constant ratio. It is a special case of the slope-intercept form y =mx +b, where b = 0.
Graph g(x)=-2|x -5|-4g(x)=−2∣x−5∣−4
The graph of the given function is attached below.
What is a absolute function?
A function that wraps an algebraic expression in absolute value symbols is known as an absolute value function. Remember that a number's distance from 0 on the number line represents its absolute value. The definition of the absolute value parent function is given as follows: f(x)=x if x > 0 and f(x) = -x if x 0.
Given function is g(x)= - 2|x -5|-4.
Finding some points on the graph:
Putting x = 5
g(5)= - 2|5 -5|-4
g(5) = -4
Putting x = 0
g(0)= - 2|0-5|-4
g(0) = -2 ×5 - 4
g(0) = -14
Putting x = 10
g(10)= - 2|10 -5|-4
g(10) = -2 ×5 - 4
g(10) = -14
The points on the graph are ( 5,-4), (0,-14), (10,-14).
Plot the points and joint them.
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What theorem is being applied if two triangles of one triangle are congruent to two angles of another triangle and the triangles are similar?
Triangle congurent theorem is being applied if two triangles of one triangle are congruent to two angles of another triangle and the triangles are similar.
Angle-Side-Angle (ASA) theorem states that if two triangles are considered congruent, then the two corresponding angles equal to each other will include a corresponding side that is equal to each other.
By applying the Side Angle Side Postulate (SAS), you can also be sure your two triangles are congruent. Here, instead of picking two angles, we pick a side and its corresponding side on two triangles.
The SAS Postulate says that triangles are congruent if any pair of corresponding sides and their included angle are congruent.
Perhaps the easiest of the three postulates, Side Side Side Postulate (SSS) says triangles are congruent if three sides of one triangle are congruent to the corresponding sides of the other triangle.
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Factorise 9x² – 3x – 20
Answer: answer 74 hope it help
Step-by-step explanation:
9x9= 81
3x3x3 27
27-20=7
81-7=74
Answer: (3x+4)(3x−5)
Step-by-step explanation:
How do you graph the line x =- 5?
The graph of the line x=-5 is attached below :
What is graph of a line?An informational shift over time is graphically represented by a line graph. It is a graph that was created by connecting points with line segments.
x=-5 denotes that for the given line the value of x cordinate is always same and is equals to -5.
This line passes through point (-5,0)
So for the given line the value of x cordinate is constant and is equal to -5 so it is a vertical line that passes through point (-5,0).
Describe vertical line:Any straight line that runs from top to bottom or bottom to top is considered to be a vertical line. Standing lines are another name for the vertical lines.
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5. A student graphed f of x. equals. x. and g of x. equals. 1 over 3. f of x. plus 5 on the same coordinate grid. Which statements are true?
Select THREE correct answers.
To create g, the graph of f is shifted 5 units up.
To create g, the graph of f is shifted 5 units down.
The graph of f is steeper than the graph of g.
The graph of g is steeper than the graph of f.
The y-intercept of g is 5 units below the y-intercept of f.
The y-intercept of g is 5 units above the y-intercept of f.
The three correct answers that describe the given transformations are;
A) To create g, the graph of f is shifted 5 units up.
C) The graph of f is steeper than the graph of g.
F) The y-intercept of g is 5 units above the y-intercept of f.
How to find the sequence of transformation?We are given the equations as;
f(x) = x
g(x) = ¹/₃(f(x)) + 5
For a function f(x) we define a vertical translation (or vertical shift) of n units as:
g(x) = f(x) + n
If n is positive, the translation is upwards
If n is negative, the translation is downwards.
Thus, the graph of f was shifted 5 units upwards.
Now, the equation of a line in slope intercept form is;
y = mx + c
where;
m is slope
c is y-intercept
Thus;
y-intercept of f(x) = 0
y-intercept of g(x) = 5
Thus;
y -intercept of g is 5 units above y-intercept of f.
Now, the steeper the line, the higher the slope. Thus, function f has a higher slope than function g and so function f is steeper than function g.
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A playground is in the shape of a rectangle. The length of the rectangle is three times its width. The area of the playground is 19,500 square feet. What is the length of the playground? Round to the nearest foot. Hint: use A=LW
The length of the rectangular playground is 241.86 foot.
How to calculate length of the rectangle?Given that area of rectangle is 19,500 sq.ft and length of rectangle is three times its width.The area for rectangle is given by formula: A=LW.
Now according to the given condition, L= 3W. Further we'll solve by putting L= 3W in the formula for rectangle.
Calculation:A=LW
As given A= 19,500 sq.ft and considering L=3W,
19,500 = 3W*W
19,500 = 3W^2
∴ W^2 = 6500
∴ W = [tex]\sqrt{6500}[/tex]
∴ W = 80.6225 ft. ≈ 80.62 ft.
Now putting the value W = 80.62 in equation L =3W,
L = 3* 80.62
L = 241.86 ft.
The length of the rectangular playground is 241.86 foot.
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How do you find the missing number in a given integer array of 1 to 100 in PHP?
The missing number in a given integer array of 1 to 100 can be found using the PHP array_diff() function.
This function compares two array and returns the difference. To find the missing number, we first need to create an array that contains all numbers from 1 to 100. We then create another array with the given integers. Using array_diff(), we can compare the two arrays and the difference will be the missing number.
To use the array_diff() function, we first need to create the two arrays. For example,
$array1 = range(1,100);
$array2 = array(1,2,3,4,5,6,7,8,9);
The first array is containing all numbers between 1 and 100 and the second array is containing the given integers.
The next step is to use the array_diff() function. The syntax for this is
$diff = array_diff($array1, $array2);The result of this will be an array containing the missing integer.
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Describe and correct the error in solving the equation
Answer:
what equation?
Step-by-step explanation:
Answer:
x=2
Step-by-step explanation:
2(x+1)^2+3=21
2(x+1)^2=9
x+1=3
x=2
i need help please help.
Answer:
u =10 v=13
in order in order for the triangles to be congruent the sites with vehicle in this case if the you equals to 10 in the both sides then the sides opposite to the right angle will be equal and if the is equal to 13 it will mean that the sides along with the right angle would be equal which makes a triangle congruent
What is the solution to 3x+2423.0?
john drinks a sugary sweetened beverage containing 160 calories and 40 grams of sugar. how many teaspoons of sugar does the drink contain
Beverage containing 160 calories and 40 grams of sugar will be equal to 18 teaspoons.
Like other carbs, sugar has nutritional value.
Carbohydrates contain roughly 4 calories per gram.
A teaspoon of sugar has 20 calories and approximately 5 grams of carbohydrates.
As per the question,
The beverage contains 160 calories,
160 calories will be equivalent to (160/20) = 8 teaspoons. (As 1 teaspoon of sugar contains 20 calories)
Along with it, the beverage also contains 40 grams of added sugar.
The 40 grams of added sugar divided by the 4 grams of sugar per teaspoon resulted in 10 teaspoons of added sugar.
As in a drink, 160 calories and 40 grams of added sugar are present.
So, the total teaspoons of sugar will be = 8 + 10 = 18 teaspoons.
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How do you solve equations on a calculator?