Notes, abstracts, papers, exams and problems of Mathematics

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Ingles redaccion

Classified in Mathematics

Written at on English with a size of 1.22 KB.

Mobile phones should be banned at school
Everybody says that mobile phones should be banned at school because they usually interrupt the class. However, I think that mobile phones are necessary because it is possible you need them when there is an emergency.
On the one hand there are some arguments to ban mobile phones at school. They annoy a lot if they ring in class. Students sometimes pay more attention to the mobiles than to the teacher. This is really the reason that teachers give, but students nowadays don’t admit any reason because they want their mobile phones to listen to music at the end of the class.
On the other hand if teenagers can’t use the mobile phone they will be very unhappy, bored and it may be necessary for an emergency.
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The stages of learning as Dienes

Classified in Mathematics

Written at on English with a size of 4.94 KB.

4.1 The stages of learning as Dienes
The learning process is a process based on abstraction, generalization and communication. This process of abstraction is to accurately analyze and Dienes identifies six different stages in it:
Stage 1: introduces the individual in the middle => Game Free
2nd stage: review, manipulate, get rules => Structured Games
3rd stage: becoming aware of the common structure to games made
4th stage: representation of the common structure graphically or schematically => Stage representative
5th stage study of the properties of abstract structure, which implies the need to invent a language => Stage symbolic
6th stage: Construction of axioms and theorems => formal Stage
Her pedagogical approach

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Matrices: multiplication, rank, determinant, inverse and Rouche-Frobenius theorem

Classified in Mathematics

Written at on English with a size of 155.53 KB.

System Types
The systems of equations can be
classified by the number of solutions that can arise. According to that case may have the following cases:
· Incompatible system if it has no solution.
· Compatible system if you have any solution in this case can also distinguish between:
or compatible system determined when it has a finite number of solutions.
indeterminate
or compatible system when it admits an infinite set of solutions.
Fitting and classification:
Image
Calculating the rank of a matrix for determining
Image
1. We can rule a line if:.
· All the coefficients are zeros.
· There are two equal lines.
A line is proportional to another.
A line is a linear combination of others.
Delete the third column because it is a linear... Continue reading "Matrices: multiplication, rank, determinant, inverse and Rouche-Frobenius theorem" »

Distribution

Classified in Mathematics

Written at on English with a size of 26.24 KB.

Q1.  (a) Describe The following terms;

              i.        Aleatory uncertainty

              ii.      Epistemic uncertainty

Answer:

i.     Aleatory Uncertainty:

Aleatory (Random or Objective) uncertainty is also called irreducible or inherent Uncertainty.

The word aleatory Derives from the Latin alea, which means the rolling of dice. Thus, an Aleatoric uncertainty is one that is presumed to be the intrinsic randomness of A phenomenon. Interestingly, the word is also used in the context of music, Film and other arts, where a randomness or improvisation in the performance is Implied.

ii.    Epistemic uncertainty:

Epistemic (Subjective) uncertainty is a Reducible uncertainty that stems from lack of

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rytr

Classified in Mathematics

Written at on English with a size of 6.95 KB.

Unit Test 9 Optional Reading (Youth for Understanding)

1    1.   It assists them with travel arrangements, Visa applications and their enrolment in schools.

      2.   They Improve their fluency in a foreign language, and also gain a deep understanding Of another country and its people.

2    1.   T – “YFU is a non-profit organisation …”

      2.   F – “… offers continued support … throughout            the exchange.”

      3.   F – “…clearly valuable for the individuals And              families who participate …”

3    1.   they gain useful skills in the programme

      2.   change The world

4    1.   c           2.   a          3.

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Show obtuse and angle as opposed to straight

Classified in Mathematics

Written at on English with a size of 2.38 KB.


acute angle is an angle whose measure is greater than 0° and less than 90°

acute triangle is a triangle with 3 acute angles

adjacent angles are angles that have a common vertex and side, but no common Interior points

angle is formed by two rays with a common endpoint called the vertex

complementary Angles are angles Whose measures add up to 90°

congruent Angles are angles That have the same measure

equilateral Triangle is a triangle With 3 congruent sides

isosceles triangle is a triangle with at least 2 Congruent sides

midpoint is the point that divides a segment into two congruent segments

obtuse angle is an angle whose measure is greater than 90° and less than 180°

obtuse triangle is a triangle with an obtuse angle

parallel lines are lines in a

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Mass and balance

Classified in Mathematics

Written at on English with a size of 2.25 KB.


4º Discuss the main themes in chapter I of 1984 and how these are further developed in the novel (make clear references to the text).

The chapter begins in on a cold in April of 1984 when the protagonist Winston Smith returns to his house (a dilapidated apartment building called Victory Mansions). In the staircase he sees an enormous face with the words BIG BROTHER IS WATCHING YOU.

The first chapters of the novel are used to develop and introduce the major characters and the main themes of the novel. One of the main goals are to control all the subjects, and to illustrate the extent of the control that government is able to exert.  Winston’s diary entry, his first overt act of rebellion, is the primary plot development in this chapter.

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Transport and travel

Classified in Mathematics

Written at on English with a size of 968 bytes.

Thanks to new ways of transport we can choose the best form to travel for each trip.However, I think the plane is the best//My main reason is that plane is very fast and it can go from country to country in hours. In addition, you can sleep while the plane is flying so you will be vested when you arrive to your destiny//In contrast, some people think that car is the best transport because you can travel when you need it or stop where you want. Moreover, I still believe that plane is the best transport of the world because of the prices ticket are cheaper than the oil//In conclusion, if you need travel fast,your best election is the plane.

Selling abroad

Classified in Mathematics

Written at on English with a size of 5.97 KB.

[Question 9 Sensitivity Analysis ] Fran Farnsworth travels throughout the Maritime selling a line of three health care Products. Each box of Flex costs $3 from her supplier, takes Fran 10 minutes (on average) to sell, costs $0.50 to deliver, and contributes $2 to Fran’s commission. Each box of Feelgood costs $5, takes 20 minutes to sell, is left With the customer at the time of sale, and contributes $4 to Fran’s commission.

Each box of Firmup Costs $4, takes 12 minutes to sell, costs $1 to deliver, and contributes $3 to Fran’s commission. Every week Fran is allowed to draw up to $1500 worth of Products, and has a weekly delivery expense allowance of $85. Due to travel Time and other commitments, Fran is limited to 40 hours, or 2400 minutes,

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hiring

Classified in Mathematics

Written at on English with a size of 2.68 KB.

What is a shapefile?

A shapefile is an Esri vector data storage format for storing the location, shape, and attributes of geographic features. It is stored as a set of related files and contains one feature class. Google Earth, an Online Satellite Imagery (OSI) Technique, is a tool for generating shapefiles.

Question 2: In your project, what geometric analysis tool have you used? How was the experience? Give one example / some examples.

One example:

We used ArcGIS to create a few population maps of To Kwa Wan.

We first selected the population and working population data from the C&SD department. Second, we opened TPUs with the population data in ArcGIS. The area of the TPUs was then calculated based on Hong Kong 1980 Grid, and hence the population... Continue reading "hiring" »