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1 Februari 2008
RISA
Matematika Kelas 9

UNTUK MENENTUKAN NILAI 'T' DALM SUATU PERSAMAAN DLM LINGKARAN

MISALNYA, DALAM PERSAMAAN X2+Y2-6X+8Y-T=0 YANG MENYINGGUNG GARIS 4Y-3X=0

 ATAU DENGAN PERSAMAAN:

X2+Y2-2TX+6Y+49=0 YANG MENYINGGUNG SUMBU X

 ATAU DENGAN PERSAMAAN

X2+Y2=25 YANG MENYINGGUNG Y=X+T

TOLONGIN AKU YA... AKU KURANG PAHAM

TERIMA KASIH BANYAK...XIE XIE 

Begini dhik, langkah2nya adalah:

1. subtitusikan y=mx+k  kedalam persamaan lingkaran
x2+y2+Ax+BY+C=0 dan bentuklah persamaan kuadrat ax2+bx+c=0

2. Syarat garis menyinggung lingkaran jika D=b2-4ac=0 (karena hanya ada 1 titik persekutuan untuk harga x)

Mari kita coba

 4Y-3X=0 dapat diubah menjadi y=(3/4) x

  disubtitusikan ke X2+Y2-6X+8Y-T=0 menjadi X2+(3/4 x)2-6X+8(3/4 x)-T=0

X2+(9/16) x2-6X+6 x-T=0

25/16 x2-T=0 disini a=25/16 ; b=0; c= -T

syarat D=0 maka 02 -4(25/16)(-T)=0

25/4 T=0 maka T=0

 

Penyelesaian soal kedua

 X2+Y2-2TX+6Y+49=0 YANG MENYINGGUNG SUMBU X

Sumbu x itu persamaannya adalah y=0

kita subtitusikan  y=0 ke X2+Y2-2TX+6Y+49=0

X2+(0)2-2TX+6(0)+49=0

 X2-2TX+49=0 disini a=1; b=-2T; c=49 sehingga D=(-2T)2-4(1)(49)=0

 4T2-4(49)=0

T2-49=0

(T+7)(T-7)=0 maka T=7 atau T=-7

 

penyelesaian soal ke 3

 X2+Y2=25 YANG MENYINGGUNG Y=X+T

caranya sama saja dhik

 Y=X+T disubtitusikan ke X2+Y2=25

X2+(X+T)2=25

X2+X2 +2TX + T2=25

2X2+2TX + T2-25=0 disini a=2; b=2T; c=T2-25

Syarat D=0

(2T)2 -4(2)(T2-25)=0

4T2 -8T2+200=0

-4T2 +200=0

T2 -50=0

T=±√50 = ±5√2


NGATIJAN, S.Pd.

1 Februari 2008
risa
Bahasa Inggris Kelas 9

1.Saya mau nanya..apa perbedaan analytical expesition dengan hartator exposition..? tolong berikan pula contohnya, namun bertema tentang seputar  lingkungan atau penyakit untuk menambah pengetahuan (tolong dengan arti nya juga ya supaya bisa saya pahami)..tolong di jawab dengan sekarang ya..xie xie

 

perbedaan analytical expesition dengan hartatory exposition adalah sbb:

.anda pelajari contoh-contoh teks di bawah ini

Hortatory Exposition

 

The function of the text is to persuade the readers or listeners that something should or shouldn’t be the case.

 

The generic structure is thesis, arguments, recommendation.

 

Example:

Country Concern

Thesis

In all the discussion over the removal of lead from petrol (and the atmosphere) there doesn't seem to have been any mention of the difference between driving in the city and the country.

 

Argument

While I realize my leaded petrol car is polluting the air wherever I drive, I feel that when you travel through the country, where you only see the another car every five to ten minutes, the problem is not as severe as when traffic is concentrated on city roads.

 

Argument

 Those who want to penalize older, leaded petrol vehicles and their owners don't seem to appreciate that, in the country, there is no public transport to fall back upon and one's own vehicle is the only way to get about.

 

Recommendation

I feel that the country people, who often have to travel huge distances to the nearest town and who already spend a great deal of money on petrol, should be treated differently to the people who live in the city.

 

Analytical Exposition

 

The function of this text is to persuade the readers or listeners that something is in the case.

 

The generic structure is thesis/statement of position, arguments, reiteration or summing up/ reinforcement of position statement

 

This text has language features such as: focus on generic human and non human participants, reasoning expressed as verbs and nouns, use of material, relation and mental process.

 

 

SHOULD CHILDREN WEAR HATS AT SCHOOL?

(Statement of position):

I believe that you should always wear a hat at school when you are playing outside , to stop you from getting sunburn.

(Argument 1):<br>

Firstly, if you don’t wear a hat, you will get sunburn ant the sunburn is painful.

(Argument 2):

Secondly, sunburn could lead to skin cancer. Sunburn can lead to health problems later in life. Many older people suffer from skin cancer which can kill them.<br>

(Reinforcement of position statement):

In my opinion all school students should wear hats

 

 

SHOULD MUSIC BE COMPULSORY IN JUNIOR HIGH SCHOOL?

(Statement of position):

I believe that music should be compulsory in Junior High School. Firstly, everyone likes music of some kind. Music is enjoyable.

(Argument 1):<br>

Secondly, the music industry is very popular in our society and the music industry is a very big one. It is important to know something about it.

(Argument 2):

Thirdly, learning to play music and to play an instrument helps you with other subjects. Studies have shown this. Playing an instrument is interesting and enjoyable. Also, songs tell stories, help us with English and make us happy.

(Reinforcement of position statement):

In conclusion, for the above reasons, I believe that music should be compulsory in Junior High School.

 


ENDANG TRININGSIH

1 Februari 2008
soni
Bahasa Inggris Kelas 9

saya mau tanya bagaimana cara membuat analytical expositions? tolong sertakan contoh textnya?

Analytical Exposition

 

The function of this text is to persuade the readers or listeners that something is in the case.

 

The generic structure is thesis/statement of position, arguments, reiteration or summing up/ reinforcement of position statement

 

This text has language features such as: focus on generic human and non human participants, reasoning expressed as verbs and nouns, use of material, relation and mental process.

 

 

SHOULD CHILDREN WEAR HATS AT SCHOOL?

(Statement of position):

I believe that you should always wear a hat at school when you are playing outside , to stop you from getting sunburn.

(Argument 1):

Firstly, if you don’t wear a hat, you will get sunburn ant the sunburn is painful.

(Argument 2):

Secondly, sunburn could lead to skin cancer. Sunburn can lead to health problems later in life. Many older people suffer from skin cancer which can kill them.

(Reinforcement of position statement):

In my opinion all school students should wear hats.

 

 

SHOULD MUSIC BE COMPULSORY IN JUNIOR HIGH SCHOOL?

(Statement of position):

I believe that music should be compulsory in Junior High School. Firstly, everyone likes music of some kind. Music is enjoyable.

(Argument 1):

Secondly, the music industry is very popular in our society and the music industry is a very big one. It is important to know something about it.

(Argument 2):

Thirdly, learning to play music and to play an instrument helps you with other subjects. Studies have shown this. Playing an instrument is interesting and enjoyable. Also, songs tell stories, help us with English and make us happy.

(Reinforcement of position statement):

In conclusion, for the above reasons, I believe that music should be compulsory in Junior High School.

 


ENDANG TRININGSIH

1 Februari 2008
Bahasa Inggris Kelas 9

bagaimana cara membuat pertanyaan soal text narrative?

 

Teks narrative 

 

Once there were two him thin  goats. Both of them were hungry. They were tied together with a brown rope. They wanted to eat the green leaves from two separated bushes. One bush was on the left. The other bush was on the right.

The goats thought they could do everything on their own. The first goat wanted to go to the bush on the left, but the second goat wanted to go to the bush on the right. However, the rope was short. They tried but they could not reach they bushes. They were sad.

Then, the goats decided to work together. First, they are the leaves of the bush on the right. Then, ate the leaves on the left. The leaves were delicious. They were happy.

 

1.  The purpose of the text above is …

a. to tell a true story

b. to entertain readers

c. to give a report

d. to describe the animals

 

2.  Where did the story happen?

  1. At a zoo
  2. In a jungle
  3. At the bushes
  4. On a mountain

 

 

3.  What is the story about?

a.       The bushes

b.      The brown rope

c.       The green leaves

d.      The two thin goats

 

4.  The goats finally reached the bushes, because they … together.

a.       Worked

b.      Tried

c.       Tied

d.      Cut the rope

 

5.  In line 3 you read “… they are the leaves on the ight. Then, they ate the leaves

     on the left.” (paragraph 3).

     This part of the text is called ….

a.       Resolution

b.      Orientation

c.       Description

d.      Complication

 

 

6.  “Only a chorus of tree frogs and inseets remind us that ….” (line 2)

     The underlined word means ….

a. Choir

b. Music

c. Rhyme

d. Song

 


ENDANG TRININGSIH

29 Januari 2008
aRthA
Bahasa Inggris Kelas 9

Tolong bgt buatkan sebuah spoof yang bnar2 nyata...dan bnr2 lucu...pliz..tolong bgt.Aq tgGu jwbnNya,tolng scpatnya,kRn ini pnting skali..

Spoof

The function is to retell an event with a humorous twist.

The generic structure of this text  is: orientation – event(s) – twists

This text uses past tense.


Example:
One day, two villagers went to Jakarta. They went to the biggest mall and saw shiny silver walls that could open and move apart and back together. They were amazed when an old lady rolled in to the small room and the doors closed. A minute later, the doors opened and a young beautiful lady stepped out.The father said to his son "Go, get your mother now."

 

Silakan tertawa. 


ENDANG TRININGSIH

28 Januari 2008
v3
Bahasa Inggris Kelas 9

tlg kasih contoh texs reprt?mkch.

Contoh Report tentang hewan

Goannas

Goannas are large Australian lizards which belong to the reptile family.Goannas are yellowish-brown in colour and grow to about a metre in length.They live in burrows and eat insects, lizards, mice, eggs, and flesh of dead animals. To breed, the female goanna lays about six eggs in a termite mound.

Contoh Report tentang tekhnologi

Fax Machine

 

Fax, the short term for facsimile is a telecommunications technology used to transfer copies (facsimiles) of documents, especially using affordable devices operating over the telephone network. The word telefax, short for telefacsimile, for "make a copy at a distance", is also used as a synonym. The device is also known as a telecopier in certain industries. When sending documents to people at large distances, faxes have a distinct advantage over postal mail in that the delivery is nearly instantenous, yet its disadvantages in quality and its proprietary format have relegated it to a position beneath email as the prevailing form of electronic document tranferral
ENDANG TRININGSIH

27 Januari 2008
Bahasa Inggris Kelas 9

gmn c cra'a ngebedain recount text sm narrative text ??

 Perbedaan recount dan narrative:

Untuk recount hanya berisi urutan kejadian di waktu lampau dan tidak ada konflik antar tokoh di dalam teks tersebut, sementara pada narrative selalu ada konflik yang disertai penyelesaian masalah. Untuk lebih jelasnya pelajari contoh dan penjelasan berikut.

Recount

 

The function of the text is to retell events for the purpose of informing or entertaining.

 

The generic structure of the text is orientation, event (s), reorientation.

 

This text has language features such as: focus on individual participants, use of past tense, focus on a temporal sequence of events, etc.

 

CLASS PICNIC<br>

Last Friday our school went to Centennial Park for a picnic.<br>

First our teachers marked the rolls and the we got on the buses. On the buses, everyone was chatting and eating. When we arrived at the park, some students played cricket, some played cards but others went for a walk with the teachers. At lunchtime, we sat together and had our picnic. Finally, at two o’clock we left for school. <br>

We had a great day. <br>

 

Narrative:

 

The function of the text is to amuse, entertain, and to deal with actual or various experience in different ways.

 

Generic Structure: Orientation - Complication - Resolution

Example: “Snow Maiden”, “Cinderella”, “The Legend of Banyuwangi”, dll


ENDANG TRININGSIH

27 Januari 2008
nn
Bahasa Inggris Kelas 9

ass .

mau nanya nii . apa c beda'a past perfect tense , simple perfect tense . tlong ksh contohnya y . thx 

Present perfect tense :

Menunjukkan aktifitas yang dimulai pada waktu lampau dan sudah selesai pada saat kita membicarakan aktifitas tersebut saat ini (at present),dan/hasilnya masih bisa dirasakan  sekarang.

Contoh :

The floor is clean. My servant has swept it.

Past perfect tense :

menunjukkan kejadian yang sudah dilakukan pada waktu lampau dan sudah selesai sebelum kejadian lain terjadi.

Contoh :

My sister had finished her study before she got married 2 years ago.

 


ENDANG TRININGSIH

26 Januari 2008
ito
Bahasa Inggris Kelas 9

sebenarnya lawan kata dari big itu apa sih?small atau little? apa perbedaan kedua itu?

lawan kata dari big itu small atau little tergantung pada konteks kalimatnya.

Small lebih pada ukuran suatu benda demikian juga big.

Contoh :

Eagle  needs a big cage but a canary needs small cage.  

Little lebih menekankan pada kesan/rasa (sense) seseorang terhadap seseorang/sesuatu.

Contoh :

Come on, be a big girl! Your manner is like a little  girl. You are mature enough.

Note:

big girl dalam kalimat diatas berarti adult (dewasa), sedangkan little girl berarti childish ( kekanak-kanakkan) 


ENDANG TRININGSIH

25 Januari 2008
Iansz
Bahasa Inggris Kelas 9

Saya mohon kepada siapa saja tolong buatkan saya contoh text Hortatory Exposition karena saya benar-benar tidak mengerti car membuatnya.....

Hortatory Exposition

 

The function of the text is to persuade the readers or listeners that something should or shouldn’t be the case.

 

The generic structure is thesis, arguments, recommendation.

 

Example:

Country Concern

Thesis

In all the discussion over the removal of lead from petrol (and the atmosphere) there doesn't seem to have been any mention of the difference between driving in the city and the country.

 

Argument

While I realize my leaded petrol car is polluting the air wherever I drive, I feel that when you travel through the country, where you only see the another car every five to ten minutes, the problem is not as severe as when traffic is concentrated on city roads.

 

Argument

 Those who want to penalize older, leaded petrol vehicles and their owners don't seem to appreciate that, in the country, there is no public transport to fall back upon and one's own vehicle is the only way to get about.

 

Recommendation

I feel that the country people, who often have to travel huge distances to the nearest town and who already spend a great deal of money on petrol, should be treated differently to the people who live in the city.

 


ENDANG TRININGSIH

 

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