What is the set formula?

Answers

Answer 1

The formula of the set is generally written as follows.

The term set in math is defined as an organized collection of objects and can be represented in set-builder form or roster form.

Here we need to find the formula that can be used in set.

The general formula of the set can be written as follows:

=> n ( P ∪ Q ) = n(P) + n(Q) – n ( P ∩ Q)

where

n(P U Q) refers the number of elements present in one of the sets P or Q.

n(P ⋂ Q) refers the number of elements present in both the sets P & Q.

Where as If P ∩ Q = ∅, then the value is calculated as,

=> n ( P ∪ Q ) = n(P) + n(Q)

Here we have also want to know that sets P and Q are equal only if all the elements they contain intersect, and none of them have any unique elements which are not present in the other set.

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Related Questions

decrease 784 in the ratio 3:4​

Answers

Answer:

336 and 448

Step-by-step explanation:

sum the ratio

divide the actual number by the sum i.e 784÷7=122

multiply 112 by 3 and by 4

The numbers are 336 and 448 respectively.

What is Arithmetic?

The mathematical branch known as arithmetic deals with the study and application of numbers, their relationships, and mathematical observations. The term "arithmetic" (which comes from the Greek word "arithmos," "number") often refers to the fundamental concepts in number theory, measurement, and computation (that is, the processes of addition, subtraction, multiplication, division, raising to powers, and extraction of roots).

As per the given data:

We have to decrease 784 in the ratio 3:4​

Consider that after decreasing, the numbers are x and y.

From the given data:

(x / y) = (3 / 4)

⇒ 4x = 3y

⇒ y = (4x/3) ...(i)

also, x + y = 784

Substituting from eq (i)

x + (4x/3) = 784

(7x / 3) = 784

x = (743 × 3) / 7

x = 336

and y = 784 - 336 = 448

Hence, the numbers are 336 and 448 respectively.

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solve this for me plzzzz and thxxx

Answers

if i am correct the answer should be (6, 6)

50 hundredths = ______ thousandths equals?

Answers

Answer:

50/100 = 500/1000 or alternatively .50 = .500

Answer:

500

Step-by-step explanation:

50 hundredths written in standard form is 0.50 .

**Adding zeroes to the end of a decimal does not change the value of the number.

1 hundredth = 0.01

1 thousandth = 0.001

So, if there are 50 hundredths, how many thousandths would there be?

The difference between hundredths and thousandths are the placement of the decimal point and how many decimal places there are after it. Hundredths have 2, while thousandths have 3.

Back to the example, 1 hundredth = 10 thousandths:

0.01 = 0.010

If there are 50 hundredths, that would mean that there are 10 times more thousandths in the same number.

0.50 = 0.500

50 hundredths = 500 thousandths

My someone pls help me

Answers

Answer:

No its not a proportion, the numerators can't be divided evenly

Step-by-step explanation:

Pls Help! It would be very much appreciated, Thx!

Answers

Answer:

A. 30 two-point questions and 10 four-point questions

Step-by-step explanation:

30 multiplied by 2 equals 60

10 multiplied by 4 equals 40

60 plus 40 equals 100 points which is the amount of points the test is worth as stated i the question.

30 plus 10 equals 40, which is the total amount of questions in the test as stated in the question.

A rectangular prism has a length of 16in, a height of 15in, and a width of 6in. What is its volume, in cubic in?

Answers

Answer:

9in

Step-by-step explanation:

a p e x

Answer:

Step-by-step explanation:

PLEASE HELP IM TIMED NO LINKS OR FILES THESE ARE NOT FREE POINTS WILL REPORT, ALSO I WILL GIVE BRAINLISET TO FIRST PERSON THAT ANSWER!

Answers

Answer:

t=-28

Step-by-step explanation:

find the image of the point (-5,-2) under ​

Answers

Find the image of the point (−2,−7) under ,so it’s (12,-1)

Find 2x^3-x^3+4x+7 divided by x+3

Answers

Answer:

(x^3+4x+7)/(x+3)

Step-by-step explanation:

you just combine the like terms on the top and put it in a fraction. let me know if that helped.

Help with this math problem, please!!

Answers

Answer:

Step-by-step explanation:

that is hard

Use the information below to respond to numbers 5,6,7 and 8.
Celeste was selling meal tickets for the holiday program at her school. The cost of a dinner ticket is
$10. She is also selling dessert tickets for $6. She lost track of how many of each ticket she sold;
however, she remembered that she was given 100 tickets and she collected $900.
The system of equations shown can be used to represent this situation:
S x + y = 100
(10x + 6y=900
5. What does the variable x represent in the system of equations? *
1 point
O A. The number of dinner tickets sold.
O B. The number of dessert tickets sold.
O C. The number of dollars collected for dinner tickets.
D. The number of dollars collected for dessert tickets.
O Other:

Answers

X is next to the number 10, so x would be the number of dinner tickets sold.

Rewrite x + y = 100 to x = 100-y

Now replace that in the 2nd equation:

10(100-y) + 6y = 900

Simplify:

1000 -10y + 6y = 900

Combine like terms:

1000 -4y = 900

Subtract 1000 from both sides

-4y = -100

Divide both sides by-4

Y = 25

Replace y in the first equation and solve for x

X + 25 = 100

X = 75

A) 75 dinner tickets were sold

B) 25 dessert tickets were sold

C) 75 x 10 = $750

D) 25 x 6 = $150

Jasmine paid $380 for a playstation 5, originally priced at $500. What percent discount did Jasmine get?

Answers

She got it for 24% off

$500 - 24% = $380

Answer: 24% discount

If 500 = 100%
Then 380 = ?

Cross multiply 380 x 100 = 38000
Divide 38000 by 500 = 76
Subtract 76 from 100 = 24

Multiplicative inverse of 0.65

Answers

1.5385 I hope this helps

Dots sells T-shirts ($5) and shorts ($8). In April, total sales were $560. People bought 4 times as many T-shirts as shorts.

Answers

Answer:

Number of T-shirts sold = 80 and number of shorts sold = 20

Step-by-step explanation:

This question is incomplete. If we have to calculate the number of shirts and T-shirts sold by Dots then we will calculate this question as below.

Let the number of shorts sold = s

And the number of T-shirts sold = T

Dots sells T-shirts at $5 and shots at $8 in April.

Equation for this situation will be,

5T + 8s = 560 -----(1)

Number of T-shirts sold are 4 times the shorts,

T = 4s ----- (2)

By substituting the value of T from equation (2) in equation (1),

5(4s) + 8s = 560

20s + 8s = 560

28s = 560

s = 20

From equation (2),

T = 4(20)

T = 80

Number of T-shirts sold = 80 and number of shorts sold = 20

¿Cuál es el número que debe escribirse sobre la línea para que se cumpla la igualdad?

7 ∙ 3 + _____ = - 4

Answers

Answer:

-25

Step-by-step explanation:

7*3+x=-4

21+x=-4

x+21=-4

x+21-21=-4-21

x=-4-21

x=-25

2. The axis of symmetry of the parabola y = x² + 9 is:
a) x=9
b) x = -9
c) x = 0
d) x= - 1/2

Answers

Axis of symmetry is c) x=0

Andy's little brother has a toy box that contains 2 blue race cars, 1 green race cars, and 1 red race car. Andy removes 2 race cars from the toy box without looking. If Andy remove a blue car first and does not replace it, which best represents the sample space for the cars Andy Removes? *
10 points
A { ( blue, green), ( blue, red) }
B { ( blue, blue), (blue, green), ( green, red)}
C { ( blue, blue), ( blue, green), (blue, red) ]
D { (blue, red), ( green, red), (blue, blue)}

Answers

Answer:

A { ( blue, green), ( blue, red) }

please mark as brainliest l need it

Answer:

A is your anser Blue,Green    Blue,Red

Step-by-step explanation:

5. What is the slant height of a right pyramid whose
lateral area is 90 ft- and whose base is a regular
hexagon with a 3 ft side?
A. 3 ft
B. 10 ft
C. 30 ft
D. 270 ft

Answers

I think it’s D. 270 ft

FIST ONE TO AWNSER GETS BRAINLYIST AND 50 points IF CORRECT HURRY!!!!!!!!
James determined that these two expressions were equivalent expressions using the values of x = 4 and x = 6. Which statements are true? Check all that apply.

Answers

Answer:

1 3, and 4 ones are correct

Step-by-step explanation:

jk

when x=2, both expressions have a value of 18 (correct answer)

This is the only answer that adds up because 7*2+4=18 and so does 3*2+5+4*2-1. Both outcomes are 18, meaning this is the only correct statement. (comment if you want the outcomes to the other statements too.)

MULTIPLE CHOICE QUESTION PLS HELP ME

Answers

Answer:

The answer is C.

The difference of a number mand thirty is ten. How do you write this as a equation?

Answers

Answer: x - 30 = 10

Step-by-step explanation:

x - 30 = 10

x = 30 + 10

x= 40

Set up and solve a proportion: On average, I can answer 14 out of 21 questions correctly in a trivia game. Assuming
this situation is proportional, how many MORE questions am I likely to get correct if there are 30 questions in all?

Answers

Answer:

20

Step-by-step explanation:

Since this is a ratio problem we first plug in all that we know

14:x

21:30

Now we find a way to get from 21 to 30

The ratio 14:21 can be simplified if we divide each by 7 give us 2:3

Now we plug the new ratio in

2:x

3:30

We get from 3 to 30 by multiplying by 10 so we also multiply 2 by 10 and we get 20

between which two integers is the value of √21?

Answers

Answer:

cll fl fl gl hhcjjfftgggc vggggg

Step-by-step explanation:

ty go gu gu gu gu gu vik bm vm gn gh ucch jhbbb

jjjjk fistulakk

Will get brainliest if correct

Answers

Answer:

half

Step-by-step explanation:

it is more than half :)

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Answers

What the answer is : H U R R Y

Whats the question bro and if there's no question than thank you bro I really appreciate you have a gn

Answer 2-5
Help please

Answers

2.) is the answer to you question

Consider this absolute value function.
(I) = I - 5
How can function fbe written as a plecewise function?
A.
T-
5,
I> 5
f13)
=
-T
5, I < 5
OB.
5,
I > -5
f(3) =
-1 – 5, I <-5
C.
-
f(x)
=
5 1 > 5
-1 + 5, I < 5
D.
f(x)
11
r – 5, * > -5
-1 + 5, r < -5

Answers

Answer:

C.

given: f(x) = |x-5|

the function f as a piecewise function

[tex]f(x) = \left \{ {{x-5, x \geq 5 } \atop {-x+5, x < 5}} \right.[/tex]

A nature park has two ticket plans. With one plan, you pay a $24 yearly membership fee plus $8
for each visit. The other plan has no membership fee, but you pay $14 for each visit. Isaac is on
the first ticket plan and Maddie is on the second ticket plan. After how many visits will they each
have paid the same amount
F 5
G6
H4
J 3

Answers

Answer:

G6

Step-by-step explanation:

help me w this pls pls pls

Answers

Answer:

48

Step-by-step explanation:

2500 - 196 = [tex]x^{2}[/tex]

x = 48

Please mark as brainliest for future answers :)

x + 1/4 = 5/6
solve the equation for x

Answers

Answer:

x =7/12

Step-by-step explanation:

x + 1/4 = 5/6

start subtract 1/4 from both sides of the equation which will move the -1/4 to the other side to get X by itself

x=5/6 - 1/4

find common denominator, which is 12

x=10/12 - 3/12

solve by subtacting

x=7/12

The answer is x=7/12!!
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