The property used here is the distributive property of the multiplication.
What property is being used?Here we have the expression:
5*23 = 5*20 + 5*3
This is the distributive property of the multiplication, it says that:
A*(B + C) = A*B + A*C
Now, the original expression can be rewritten as:
5*23 = 5*(20 + 3)
And now we apply the above property to get:
5*23 = 5*(20 + 3) = 5*20 + 5*3
5*23 = 5*20 + 5*3
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True or False: The relation {(9,1), (0,1), (9,-3), (-4,12)} is a function.
Given
relation = {(9,1), (0,1), (9,-3), (-4,12)}
Find
Is this a function?
Explanation
A relation is a function only if it relates each element in its domain to only one element in the range.
here , domain 9 has two range value 1 and -3
so it is not a function
Final Answer
Hence , it is false
Answer:
False
Step-by-step explanation:
Definition:
Function is a set of coordinate points where each coordinate points do not have same domains (x-values). If we express mathematically, we can do as [tex]\displaystyle{f=\left \{(x_0,y_0),(x_1,y_1),(x_2,y_2),...,(x_n,y_n)\}\right}[/tex] where [tex]\displaystyle{x_0\neq x_1 \neq x_2\neq \dots \neq x_n}[/tex]Function is also considered to be a relation but not all relations can be functions.
As accorded to the relation, it turns out that there are two same domains (x-values) which is 9 from (9,1) and (9,-3). Therefore, this relation doesn’t satisfy the definition of function so it’s not a function.
Please let me know if you have any questions!
515 to 103 markup percentage rate
The mark up percentage gained by the shopkeeper is 400%.
What is termed as the markup percentage rate?The markup percentage is the difference between how an item costs this same seller and what the customer pays. The greater the markup, as a percentage of a cost, the greater the profit.The markup percentage of a product is the ratio of its gross profit to its cost.It is most useful for companies that sell physical goods in industries in which prices are linked to the cost of acquiring more.The percentage of markup varies by industry as well as product. Other than discovering a price that did work for both your company and your customers, there is no golden rule.For the given question.
The cost of the item is $103.
The customer pays is $515.
The mark up percentage is -
mark up percentage = 515 - 103 / 103
mark up percentage = 4 × 100%
mark up percentage = 400 %.
Thus, the mark up percentage gained by the shopkeeper is 400%.
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Nicholas is saving money to buy a new video game. He started with $25 and after 3 weeks of doing chores he had $70.
how to find a line that is parrallel to y=4 and passes through (-3,1)
The equation of the line is given as y = 1
What is the equation of a line?In the given question, we are to find the equation of the line that is parallel to the given equation. For y = 4, the slope of the equation is equal to 0 or does not exist.
Using point-slope formula y - y₁ = m(x- x₁)
The points passing through the line is (-3, 1)
We can substitute the values into the equation;
y - 1 = 0(x - (-3)
y = 0 + 1
y = 1
The equation of the line passing parallel to the equation is y = 1
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rder these numbers from least to greatest.
19
28'
ote that for this question you can use your mouse
4.79, 4-
4.8, -√25
The most appropriate choice for ascending order will be given by-
[tex]-\sqrt{25}[/tex], 4.79, [tex]4\frac{19}{28}[/tex], [tex]4.\bar{8}[/tex] is in ascending order
What is ascending order?
Suppose there is a series of numbers. The numbers will be in ascending order if the numbers are arranged from their least value to their greatest value.
The sorting of numbers in ascending order plays a very important role in statistics for calculation of median, quartiles, decile and percentile.
Here,
4.79 = 4.79
[tex]4\frac{19}{28} = 4 + \frac{19}{28} = 4.68\\[/tex]
[tex]4,\bar{8} = 4.8888..... = 4.89[/tex]
[tex]-\sqrt{25} = -5[/tex]
-5< 4.68< 4.79< 4.89 is in ascending order
So, [tex]-\sqrt{25}[/tex]< [tex]4\frac{19}{28}[/tex]< 4.79, [tex]4.\bar{8}[/tex] is in ascending order.
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the slop of (6,2) and (24,8)
Answer:
1/3
in decimal its 0.333333
Step-by-step explanation:
I did it before
PLEASE HELP WILL MARK BRAINLIEST AND 20 POINTS !!
Write the system of equations for the matrix.
[0. 2. 3. / 4
[8 -1 -2 / 5
[2. 0. 1 /9
The three equations that will emerge from the given matrix will be:
2y + 3z = 48x - 1y - 2z = 52x + z = 9What are equations?An equation is a mathematical statement that contains the symbol "equal to" between two expressions with identical values. Like 3x + 5 = 15, for example. There are many different types of equations, including linear, quadratic, cubic, and others. In a mathematical equation, the equals sign is used to express that two expressions are equal.So, the equations for the given matrix will be:
[0. 2. 3. / 4]
[8 -1 -2 / 5 |
[2. 0. 1 / 9 ]
Now, the equation will be:
2y + 3z = 48x - 1y - 2z = 52x + z = 9Therefore, the three equations that will emerge from the given matrix will be:
2y + 3z = 48x - 1y - 2z = 52x + z = 9Know more about equations here:
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if u answer this can u help me with the other questions ??
Answer:
B=2, C=3, D=4, E=5
Simplify. 14(3x−7)+34x Responses 34x−1 3 over 4 end fraction x minus 1 334x−134 3 and 3 over 4 end fraction x minus 1 and 3 over 4 34x+212 3 over 4 end fraction x plus 2 and 1 half 112x−134
Answer: 1 1/2x−1 3/4
Step-by-step explanation: i took the test on k12
The simplified form of the given expression is option c 1 1/2x - 1 3/4
Given,
The expression; 1/4 (3x - 7) + 3/4x
We have to simplify this expression;
Simplification of expressions;
To simplify a phrase, create an equivalent expression without any terms that are identical. The expression will then be rewritten using the fewest terms feasible.
Then,
1/4 (3x - 7) + 3/4x
= 1/4 × 3x - 1/4 × 7 + 3/4x
= 3/4x - 7/4x + 3/4x
= 6x/4 - 7/4
= 3x/2 - 7/4
= 1 1/2x - 1 3/4
Therefore,
The simplified form of the given expression is option c 1 1/2x - 1 3/4
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What value of b makes this equation true?:x2 + bx – 35 = (x + 5)(x - 7) a) 12 b) 2 c)-2 d)-12
Answer:
c) -2.
Step-by-step explanation:
(x + 5)(x - 7)
= x^2 - 7x + 5x - 35
= x^2 - 2x - 35
Compare with
x^2 + bx - 35
we see that b = -2.
PLEASE HELP RIGHT NOW, THIS IS SUPER URGENT
The graph shows the proportional relationship between the number of gems collected and the number of levels that have been completed in a video game.
Graph with x axis labeled game levels and y axis labeled gems collected. A line begins at 0 comma 0 and goes through points 6 comma 450 and 8 comma 600.
Determine the constant of proportionality for the relationship.
p equals 2 over 150
p = 0.0133
p = 75
p = 150
The constant of proportionality for the graph will be P=75. The correct option is C.
What is a slope?Slope or the gradient is the number or the ratio which determines the direction or the steepness of the line.
The proportionality of the constant determines the linear relation between two variables. as one increases the another also increases with the same factor.
To calculate the constant of proportionality for the given graph finds the slope of the graph with the points.
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Slope = ( 600 - 450 ) / ( 8 - 6 )
Slope = ( 150 / 2
Slope= 75
Therefore, the constant of proportionality for the graph will be P=75. The correct option is C.
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13. On a certain day, 120 people
were at the cinemas. 7/10 of
them were French, 15 of them
were Chinese and the rest were
Japanese. How many of them
were Japanese?
Answer:
21
Step-by-step explanation:
120*7/10= 84 french
15 are chinese
84+15=99
120-99=21
Answer:
21
Step-by-step explanation:
Find the approximate perimeter of the isosceles triangleAOPD. Round your answer to the whole number.
The perimeter of the given triangle is the sum of the following segments:
Perimeter = PD + DO + OP
based on the given graph, you have that the coordinates of the points PDO are:
P: (1,-6)
D: (4,3)
O: (7,-6)
use the following formula for the distance in between two points:
d = √((x2 - x1)²+(y2 -y1)²)
where (x1,y1) and (x2,y2) are two points on the cordinate system.
For segement PD you have:
PD = √((1-4)²+(-6-3)²) = √(100) = 10
For segemtn DO:
DO = √((4-7)²+(-6-3)²) = √(100) = 10
For segment OP:
OP = √((1-7)²+(-6+6)²) = √36 = 6
then, the perimeter of the triangle is:
perimeter = 10 + 10 + 6 = 26
The list price of an air conditioner is $ 1260. The store offers an off season discount of 16% on it. Find its selling price.
Answer: $1058.40
Step-by-step explanation:
16% of 1260
10%=126
5%=63
1%=12.6
10% divide by 10
5% divide by 10 then divide by 2
1% divide by 100
126+63+12.6=201.6
$201.60
Because it is on a discount we know subtract it with the original price
1260-201.6=1058.4
$1058.40
a line that is parallel to y = 4 and passes through (-3,1)
Answer: I'm not sure what your options are, but a line the passes through -3,1, and is parallel to y=4, would be y=1
Step-by-step explanation:
Explain if the triangles below are congruent or not and explain why you think that.
In this picture, we have the triangles with two common sides and one common angle. However, they are not congruent, as they do not follow any of the congruence theorems. The congruence theorem with two sides and an angle is the SAS(Side-Angle-Side). However, the angle has to be the angle between the two sides, which does not happen in this case.
What is the linear equation for the line graphed below?
Answer:
y = -3x + 7
Step-by-step explanation:
Hello!
Slope-Intercept Form: y = mx + b
m = slopeb = y-interceptThe y-intercept of the graph, or the point where the graph intersects the y-axis, is 7.
We can find the slope by finding the Rise/Run.
The graph rises negatively by 3 units as it runs positively by 1 unit, so the slope is -3/1 or -3.
Given the slope and y-intercept, the equation of the line is y = -3x + 7.
Please help! I have no idea what I’m doing and I’m super behind, I absolutely suck at math!
The function f(x) is graphed below.
(Picture below)
A) what is f(0)
B)what is f(3)
C) what is f(2)
Answer: 0, 3, 0
Step-by-step explanation:
f(a) represents the value of f(x) at x=a.
Question 3 of 6
An interior designer charges $100 to visit a site, plus $55 to design each room. Identify a function
that represents the total amount he charges for designing a certain number of rooms. What is the
value of the function for an input of 6, and what does it represent?
Of(x) = 100 + 55x
$430, which is the total charge in dollars for designing 6 rooms
Of(x)= 100x + 55
$655, which is the total charge in dollars if the interior designer visits à site
Of(x)=100+ 55+%
$161, which is the total charge in dollars if the interior designer visits a site
f(x) = (100 + 55)x
$930, which is the total charge in dollars for designing 6 rooms
The function that can be used to represent the total amount that will be paid for the room is 100 + 55h.
What is a function?A function simply means the expression that. an be used to show the relationship between the variables or the data given.
In this case, the interior designer charges $100 to visit a site, plus $55 to design each room.
Let the number of rooms be represented as r.
The function that represents the total amount will be:
= 100 + (55 × h)
= 100 + 55h
This illustrates the concept of functions.
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Sailman A gets paid $300 a month plus $8 for every sale he makes. Salesman B gets paid $1500 a mont. Write and equation and solve to see how many salesman a must make in order to make the same amount of salesman b
the number of sales by b must be 150 to make the same amount of salesman B.
What is Algebraic expression ?
Algebraic expressions are the idea of expressing numbers using letters or alphabets without specifying their actual values. The basics of algebra taught us how to express an unknown value using letters such as x, y, z, etc. These letters are called here as variables. An algebraic expression can be a combination of both variables and constants. Any value that is placed before and multiplied by a variable is a coefficient.
given that :
Salesman A gets paid $300 a month plus $8 for every sale he makes :
let the no. of sales A made be : x
then, in order to make the same amount of salesman b we equate btoth the amount :
300 + 8x = 1500
8x = 1500-300
8x = 1200
x = 1200/8
x = 150
Therefore, the number of sales by A must be 150 to make the same amount of salesman b.
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8y+9>1 need help soon
Answer:
y > -1
Step-by-step explanation:
8y+9 > 1
-9 -9
8y > -8
/8 /8
y > -1
PLEASE HELP!! Thank you
Answer:16%
Step-by-step explanation: (New Number-Old Number)/Old Number*100
Meaning: [tex]\frac{290-250}{250} *100[/tex]
[tex].16*100[/tex]
16
Could be wrong but i j learned this
When an integer is subtracted from 8 times the next consecutive odd integer, the difference is -33. Find the value of the greater integer.
The two consecutive odd integers are -7 and -5, then the greater integer is -5.
How to find the value of the largest integer?Let's say that the smaller integer is x and the larger one is y.
Such that if both of these are odd and consecutive, then y = 2 + x.
We can now write:
8*y - x = -33
Replacing y by x + 2 we get:
8*(x + 2) - x = -33
8x + 16 - x = -33
7x = -33 - 16 = -49
x = -49/7 = -7
that is the smaller integer, then the next one is:
y = x + 2 = -7 + 2 = -5
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The required value of the greater integer among the two consecutive odd integers is - 5.
What is an integer?An integer is a real number that has no decimal part.
suppose we have specified a particular odd no. 'O' then the consecutive odd integers are those numbers that arrive after every two numbers.
Given, an integer is subtracted from 8 times the next consecutive odd integer, the difference is -33.
Assuming the first odd integer to be 'n'.
So, the next consecutive odd integers are (n + 2), (n + 4)...
∴ 8(n + 2) - n = - 33.
8n + 16 - n = - 33.
7n = - 33 - 16.
7n = - 49.
n = - 49/7.
n = - 7.
So, the two integers are -7 and (-7 + 2) = - 5.
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The sum of an integer and 4 times the next consecutive odd integer is 23. Find the value of the greater integer.
The greatest integer in the system has a value of 5
How to calculate the value of the greater integer?From the question, the given parameters are:
The sum of an integer and 4 times the next consecutive odd integer is 23
Let the integer be x
So, we have the following representation
The sum of x and 4 times the (x + 2) is 23
This means that
Integer = xNext odd integer = x + 2So, we have
x + 4(x + 2) = 23
Open brackets
x + 4x + 8 = 23
Evaluate the like terms
5x = 15
Divide by 5
x = 3
So, we have
Next odd integer = 3 + 2
Evaluate
Next odd integer = 5
Hence, the value of the greatest integer is 5
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Please help I answered all the questions that I could but this one I don’t understand! If someone couple please help that would be amazing!
Given the function:
Find the following values.
g(x)=-2-2.5x
a) g(4)
g(4) =
b) g(0)
g(0) =
c) g(-4)
g(-4)=
Wherever you see the letter [tex]x[/tex] in the equation, you write [tex]4[/tex], [tex]0[/tex] or [tex]-4[/tex] and perform arithmetic operations. Good luck!
[tex]\frac{1}{x -3/6}[/tex]
The fraction 1/ (x- 3/6) can be simplified in its simplest form as 6/(6x -3).
How can the given faction be expressed?From the question were given the expression as 1/ (x- 3/6) , which have the numerator as 1 and the denominator as (x- 3/6) , then
the denominator can be expressed as
(x- 3/6)
which can be simplified as :
(6x -3)/6
then we can place it back to the normal equation as 1/ (6x -3)/6, since the equation now appear in form of inverse function, Then this can be expressed by simplifying it as 6/(6x -3).
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Write an expeession equivalent to 0.4x
A. X-0.6x
B. 1-0.6x
C. X + 0.4
D. 0.4x-x
Answer:
A. X-0.6x
Step-by-step explanation:
A. X-0.6x = 0.4x YES
B. 1-0.6x = 1 - 0.6x NO
C. X + 0.4 = 1.4x NO
D. 0.4x-x = -0.6x NO
please explain how you got it
Answer:
30y^5 x^8
Step-by-step explanation:
3x^8 * 5y^4 * 2y
Add 4 and 1 and you'll get 5 so it'll be:
3x^8 * 5y^5 * 2
Which it'll look like
15x^8 y^5 *2=
30x^8 y^5
Point (2,11.9),(4,10.5)
(2,8) , (4,7.5)
(2,6) , (4,1.5)
(2,0.5) , (4.-1)
(2,-1) , (4,-1)
(-2.8,-5.0) , (-3.6,-5.9)
rise over run so what's the answer
Answer: The slope is -0.7, the rise is -1.4, and the run is 2
Mid point of -2,11 and 18,-1
The midpoint of (-2, 11) and (18, -1) is:
[tex]\begin{gathered} \bar{x}=\frac{-2+18}{2}\rightarrow\bar{x}=8 \\ \\ \bar{y}=\frac{11-1}{2}\rightarrow\bar{y}=5 \end{gathered}[/tex]Point (8,5)