Given the relation, value of −r2 is {(3, 1), (3, 3), (2, 3), (1, 4)}.
To find −r2, we first need to find r2, which is the composition of the relation r with itself. The composition of r with itself is given by:
r2 = {(a, c) | ∃b ∈ A, (a, b) ∈ r and (b, c) ∈ r}
where A is the set of all elements in the relation r.
Using this definition, we can calculate r2 as follows:
r2 = {(1, 3), (3, 3), (3, 2), (4, 1)}
Next, to find −r2, we simply take the inverse of each ordered pair in r2 and reverse the order of the pairs. Thus, we have:
−r2 = {(3, 1), (3, 3), (2, 3), (1, 4)}
Therefore, the relation −r2 is {(3, 1), (3, 3), (2, 3), (1, 4)}.
To know more about relation refer here:
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9. Which of these was an example of US industrial mobilization for war? (5.1.B) A. Increased factory production of tanks and planes B. Increased farm production of wheat C. Rationing of products, like copper and rubber D. Increased production of automobiles
Answer:
A
Step-by-step explanation:
Tanks are the Backbone of the Military, they are needed to destroy the Axis Powers during WW2, they also used Captured Enemy Tanks for studying and Produce New Tanks to Counter them.
There are 56 female performers in a dance recital. The ratio of men to women is 3:8. How many men are in the dance recital?
Answer:
56%8=7 so then u do this (3 is the ratio of men) 3X7=21 and thats how u do it :D
Step-by-step explanation:
uhh i don't have one lol
please please help! i just answered a few questions just to post this im using all my points.
Answer:
Step-by-step explanation:
∠RST=180-44-15
=121°
In ΔRST and ΔLMN,
∠RST=∠LMN (proven)
∠TRS=∠NLM (given)
∴ΔRST ~ ΔLMN (AA)
Answer:
Yes
Step-by-step explanation:
If all the angles in the triangles are the same, then the triangles are similar.
ΔSRT: The angles in a triangle add up to 180. 44+15+x=180, x=121
ΔLMN: The angles in a triangle add up to 180. 44+121+x=180, x=15
Both triangles share the same angles (44,15 and 121), so they are similar.
The circumference of a circle is 31.4 inches. Enter the radius of the circle, in inches. Round your answer to the nearest whole number.
Answer:
Should be 5 in.
Step-by-step explanation:
C=2*Pi*R
31.4=2*3.14*R
substitute 5 for radius= 2*5=10
10*3.14=31.4
Select the equation of the line of symmetry shown at the graph.
Answer choices:
X=3
Y=3
X=4
X=2
What is the image of M(11,-4) using the translation (x,y) →x-17, y + 2?
A. M'(-6,-2)
B. M'(6,2)
C. M'(-11,4)
D. M'(-4,11)
Answer:
https://cdn.kutasoftware.com/Worksheets/PreAlg/Reflections%20of%20Shapes.pdf
Step-by-step explanation:
pls search this
Answer:
A. M'(-6,-2)
Step-by-step explanation:
Any help is greatly appreciated but please show how to get answers
We first calculate the front and back which are 2 congruent(equal) triangles. The 2 areas together is...
9*6/2*2=54
Now we want to calculate the 2 rectangles at the top right and top left of the shape they are also congruent(equal). The 2 areas together is...
7*5*2=70
The last part is the rectangle on the bottom with area...
9*5=45
Now we just need to add them all together...
54+70+45=124+45=169
I hope this helped you, if you have any questions about this solution just ask me in the comments :)
Answer:
223cm
Step-by-step explanation:
First you want to figure out how many faces the 3D shape has.
This has 5 faces.
Then you find the area of each face.
The front face has an area of 54cm because the length is 6cm and the width is 9cm.
Area = Length x Width
The back face will always have the same area as the front.
54cm + 54cm = 108cm (Front and Back Face)
Now the right side and left side.
The width of the side is 5cm and length is 7cm.
7cm • 5cm = 35cm
Just like the front and back, the right and left side will have the same area.
35cm + 35cm = 70cm
Now the last part.
There is no top face since this is a 3D triangle and not a square and rectangle etc.
So, you don't add it two times like the others.
The bottom's width is 5cm and the length is 9cm
5cm • 9cm = 45cm
Now you add all of it up together to find the surface area.
108cm + 70cm + 45cm = 223cm
Hope this helps dude
whats 3squared correct to 5 decimal places
Answer:
9.0000
Step-by-step explanation:
3 squared = 3*3 = 9
9 to 5 decimal places = 9.0000
pls mark as brainliest
Which problem matches the given inequality? d > 12.75 Chelsea spent $12.75. Chelsea spent about $12.75. Chelsea spent less than $12.75. Chelsea spent more than $12.75.
Answer:
Chelsea spent more than $12.75
Step-by-step explanation:
To solve this problem we should understand the meaning of signs first.
sign (<) → less than
sign (>) → more than
sign (=) → equal to
sign (≤) → Not more than
sign (≥) → At least
If the statement is,
"Chelsea spent more than $12.75"
d > 12.75
Therefore, Chelsea spent more than $12.75 is the correct statement.
Answer:
Chelsea spent more than $12.75.
Step-by-step explanation:
bc ik.
{y=5x-7
y=-2x+7 Solve the system by graphing.
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
Answer: Put both equation into desmos and the crossing point will be (2,3) and the graph will be there.
Step-by-step explanation: 5x-7 = -2x+7 y = 5(2) - 7
5x = -2x + 7 + 7. y = 3
5x = -2x + 14
5x + 2x = 14
7x = 14
x = 2
is it possible to have triangle with 3 cm 6 cm and 7 cm sides if yes then
Answer:
No
Step-by-step explanation:
Step-by-step explanation:
Yes it is possible to have a triangle with 3 cm, 6 cm and 7 cm sides because in order to form a triangle the length of two sides of a triangle should exceed the third side as shown below :
3 + 6 > 7
9 > 7( True) ✔
6 + 7 > 3
13 > 3 ( True) ✔
7 + 3 > 6
10 > 6 ( True) ✔
Hope it will help :)
Classify each pair of numbered angles as corresponding, alternate interior, alternate exterior, or none of these.
Drag and drop the choices into the boxes to correctly complete the table.
corresponding alternate interior alternate exterior none of these
Answer:
From left to right, top to bottom: 1 and 2 are neither, 1 and 2 are neither, 1 and 2 are neither, 1 and 2 are cooresponding angles, 1 and 2 are alterante interior angles.
Answer:
We will go in order.
first-None of them
second-Alternate exterior
third-None of them
forth-Corresponding
and Fifth-Alternate Interior
Step-by-step explanation:
just took test
The means and mean absolute deviations of the amount of rain that fell each day in a local city, last week and this week, are shown below. Means and Mean Absolute Deviations of Rainfall Last Week and This Week Last Week This Week Mean 3.5 in. 2.7 in. Mean Absolute Deviation 1.2 in. 0.5 in. Which expression compares the difference of the two means to this week's mean absolute deviation?
Answer:
0.8 / 0.5
Step-by-step explanation:
Given :
Deviations of Rainfall :
______Last Week ____ This Week
Mean___ 3.5 in. ________2.7 in
MAD ___ 1.2 in _________ 0.5 in
Mean difference = 3.5 in - 2.7 in = 0.8 in
This week's mean absolute deviation = 0.5 in
Mean difference / this week's mean absolute deviation
= 0.8 / 0.5
Answer:
0.8 / 0.5
Step-by-step explanation:
You have three shirts and four pairs of pants. How many outfits consisting of one shirt and one pair of pants can you make?
Answer:
3
Step-by-step explanation:
Answer:
12
Step-by-step explanation:
3 x 4 = 12
PLS PLS help!
Type an equation of a parabola that is moved down 2 units, stretched vertically by a factor of 3, and moved left 5 units.
9514 1404 393
Answer:
y = 3x^2 +30x +69
Step-by-step explanation:
Transformations work this way:
g(x) = k·f(x) . . . . vertical stretch by a factor of k
g(x) = f(x -h) +k . . . . translation (right, up) by (h, k)
__
So, the translation down 2 units will make the function be ...
f(x) = x^2 ⇒ f1(x) = f(x) -2 = x^2 -2
The vertical stretch by a factor of 3 will make the function be ...
f1(x) = x^2 -2 ⇒ 3·f1(x) = f2(x) = 3(x^2 -2)
The horizontal translation left 5 units will make the function be ...
f2(x) = 3(x^2 -2) ⇒ f2(x +5) = f3(x) = 3((x +5)^2 -2)
The transformed function equation can be written ...
y = 3((x +5)^2 -2) = 3(x^2 +10x +25 -2)
y = 3x^2 +30x +69
__
The attachment shows the original function and the various transformations. Note that the final function is translated down 6 units from the original. That is because the down translation came before the vertical scaling.
Compare the number of friends at the beginning of a month and at the end of that month if it decreased by 60 and increased by 80
Answer:
plus 20 or positive
Step-by-step explanation:
-60+80= 20
positive
Encierra todo los números que sean mayores a 18,031 2
no se me alludas a saber cual es
HELP! THIS IS DUE IN LESS THAN 20 MINUTES! PLEASE!!! I'M ALREADY BEHIND AND THIS WILL SET ME BACK EVEN MORE!!!
Answer: For 7 this is how to graph it
Solve the equation w=cx-h for x.
Answer:
That's your answer. Let me know if you need an explanation.
x² + 2xy ty = 144
(x+y)³= ?
Answer:
t=144x3+432x2y+432xy2+144y3−x2
2xy2
Step-by-step explanation:
Calculate the slope of the graph
Daniel's school is selling tickets to a choral performance. On the first day of ticket sales the
school sold 1 adult ticket and 3 child tickets for a total of $39. The school took in $87 on the
second day by selling 5 adult tickets and 3 child tickets. Find the price of an adult ticket and the
price of a child ticket.
Answer:
Your answer.
Adult ticket = 12
Child ticket = 9
Thank you. And give my answer as Brainlist answer. Follow me for more
Step-by-step explanation:
There are 6 dogs and 12 cats in the backyard. Write the ratio of cats to total animals In 3 ways, in simplest form.
Step-by-step explanation:
12:18
12 to 18
12/18 = 2/3
Can someone just please help me I beg you
Answer:
8 by 6986 = quotient 873 remainder 2
M= 800x8 =6400
N= 560/8=70
P= 26/8 =3
Q=3x8=24
R=26-24=2
I need brainliest so I can rank up
Step-by-step explanation:
yes good haware you good
HELP WILL GIVE BRAINLY!
Answer:
The second one
Step-by-step explanation:
on the f axis you can see that f is greater than or equal to 1 and less than or equal to 5.
I NEED THIS RN AS FAST AS POSSIBLE! Your teacher decides to split the class into four equal groups with no more than five students in each group. that represents the number of students in the class.
Three salesmen work for the same company, selling the same product. And, although they are all paid on a weekly basis, each salesman earns his paycheck differently.
Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of $1,300.
100 POINTS
Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits on the amount of commission he can earn.
Salesman C does not earn any commission. His weekly salary is $900.
The weekly paycheck amount for each salesman, p, is a function of the number of sales, s, they had in that week.
Answer:
Equations for each salesman:
A. p(s) = 65sB. p(s) = 40s + 300C. p(s) = 900When s = 0, s= 1, s = 10 each of the gets paid:
A. p(0) = 0, p(1) = 65, p(10) = 650B. p(0) = 300, p(1) = 340, p(10) = 700C. p(0) = p(1) = p(10) = 900The above numbers as ordered pairs:
A B C s = 0 | (0, 0) | (0, 300) | (0, 900)s = 1 | (1, 65) | (1, 340) | (1, 900)s = 10 | (10, 650) | (10, 700) | (10, 900)Perform the indicated row operation:
2 −1 −4 7
−1 2 1 −1
0 10 8 2
equation
2 −1 −4 7
0 10 8 2
Answer:
-1,2,1,-1
3,4,5,5
The other answer is for the question after this one on the edge assignment
Answer:
1ST ANSWER
0 10 8 2
2ND ANSWER
0 3 -2 5
Got it right on edg
Help pls!!! Photo attached.
Answer:
i hope this helps
Step-by-step explanation:
Susan Marciano invested part of her $27,000 bonus in a fund that paid a 12% profit and invested the rest in stock that suffered a 3% loss. Find the amount of each investment if her overall net profit was $1,590.