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lianna [129]
3 years ago
10

Please i don't understand set theory in mathematics

Mathematics
1 answer:
nordsb [41]3 years ago
6 0

Set theory is the mathematical theory of well-determined collections, called sets, of objects that are called members, or elements, of the set. ... The axioms of set theory imply the existence of a set-theoretic universe so rich that all mathematical objects can be construed as sets

For example, if A = {1, 2, 3} and B = {1, 2, 3, 4, 5} then A Í B (Í means is a subset of). If A = {1, 2, 4, 8}, then n(A) = 4. This is because n(A) means the number of members in set A. The universal set is the set of all sets.

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Clara found the product of 3 – 6y2 and y2 + 2. Her work is shown below. (3 – 6y2)(y2 + 2) = 3(y2) + (–6y2)(2) = 3y2 – 12y2 = –9y
vladimir2022 [97]

Answer:

No, She did not use the distributive property correctly.

Step-by-step explanation:

While multiplying (3-6y^2)(y^2+2), he did not use distributive property correctly. She only multiplied 3 with y^2 and not with 2. Also she multiplied -6y^2only with 2 and not with y^2.

6 0
3 years ago
7. 12, 24, 4, 18, 12, 9<br><br> Using the data, create a histogram.
Mnenie [13.5K]

Answer:

import pandas as pd

vec = pd.Series([7.12,24,4,18,12,9])

vec.plot(kind = 'hist')

Step-by-step explanation:

You can use python for that.

By doing

import pandas as pd

vec = pd.Series([7.12,24,4,18,12,9])

vec.plot(kind = 'hist')

And this is the result you get

5 0
3 years ago
You roll a cube which has the numbers 11, 12, 11, 12, 20, and 20 on it. You then spin a spinner which has 3 sections. The letter
ale4655 [162]

Answer:

1 / 9

Step-by-step explanation:

Given the number cube :

(11,12,11,12,20,20)

Spinner : (G, H, J)

Probability = required outcome / Total possible outcomes

P(20) = 2 / 6 = 1/3

P(H) = 1 / 3

P(20 and H) = P(20) * P(H) = 1/3 * 1/3 = 1 /9

3 0
3 years ago
Write a well-organized paragraph that explains 3 ways fractals are used and give examples to support your choices. This is an op
DanielleElmas [232]
Write a well-organized paragraph that explains 3 ways fractals are used and give examples to support your choices. This is an opportunity to demonstrate the use of the reasoning skills developed in chapter 2.
5 0
3 years ago
Plss help me find this hcf<br><br>3a-6,a²-4​
aleksklad [387]

Step-by-step explanation:

1st expression = 3a - 6 = 3 ( a - 2 )

2nd expression = a² - 4 = a² - 2² = ( a + 2) (a - 2)

The HCF is (a -2).

Hope it helps :)❤

8 0
3 years ago
Read 2 more answers
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