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andi ayu

Matematika Kelas 7

sudut A : sudut B= 3:2 dan sudut A penyiku sudut B , maka sudut B adalah ?

  tlong d jwb ya , soal ny untuk besok . trima kasih

Besar sudut B = (2/5) x 90^o

                      = 36^o

Ika

Matematika Kelas 7

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perbandingan sudut-sudut yang berdekatan pada suatu jajargenjang adalah 2:3. Tentukanlah besar sudut-sudut jajargenjang itu?
Makasih :)

Misal besar sudut yang saling berdekatan 2x dan 3x maka

2x^o + 3x^o = 180^o

        5x^o = 180^o

        x^o = 36^o

Jadi besar sudut-sudut jajar genjang tersebut   2 x 36^o + 3 x 36^o  atau 72^o dan 108^o

Rhenake

Matematika Kelas 7

pak wirawan memelihara kambing dan ayam dalam satu kandang. di dalam kandang terdapat 44 ekor kambing dan ayam. selisih banyak kaki ayam dan kambing 4. jumlah kaki ayam dan kambing?

Mohon di jawab dan terima kasih bantuannya

Misal banyak kambing = x, dan ayam = y, maka :

x + y = 44   |x2|      2x  + 2y = 88

2x - 4y = 4   |x1|     2x   - 4y   = 4  -

                                       6y      = 84

                                          y =  14  

x + y = 44

x  + 14 = 44

        x   = 30

 Jumlah kaki kambing dan ayam = 30 x 2 + 14 x 4 = 116

rani

Bahasa Inggris Kelas 12

Tolong buatin dialog tentang used to dan didn\'t used to

Used to

Used to shows thatL menunjukan bahwa)

·         a particular thing always happened or was true in the past. ( kejadian tertentu yang selalu terjadi pada masa lalu )

·         But it no longer happens or is no longer true nowL( tetapi sekarang tidak ladi)

Examples:

·         David used to live in Madrid.

·         She used to exercise every morning, but since she had that terrible accident she doesn't exercise anymore.

·         Why don't you come and see me like you used to?

Forms of used to

Here are the interrogative, affirmative and negative forms of used to

·         Did you use to exercise regularly?

·         Yes, I used to go jogging nearly everyday.

·         No, I didn't use to exercise on a regular basis.

Used to, be used to, get used to

1.Used to shows that a particular thing always happened or was true in the past (see examples above)

2.Be used to is used to say that something is normal, not unusual.

Examples:

·         I'm used to living alone.

·         Don't worry, John is used to driving for long hours. He has worked as a professional driver for 20 years.

3.Get used shows that something is in the process of becoming normal.

Examples:

·         He doesn't like that small town, but he'll get used to it.

·         She found the heels too high, but she got used to them.

·         Since the divorce, she has become very sad. But I think she'll get used to her new life.

·         I got used to living in Canada in spite of the cold weather.

4. Get used to and be used to are followed by either a noun or a gerund.

Novita

Matematika Kelas 8

sebuah balok mempunyai panjang 12 cm,lebar 9cm dan diaglonal ruang 17 cm.luas permukaan balok tersebut adalah....

panjang diagonal ruang balok = √(12² + 9² + t² ) 

                                     17² = 144 + 81 + t² 

                                    289  = 225 + t²

                                    289 - 225 = t² 

                                    64 = t² 

                                    8  = t

Luas permukaan balok = 2 ( pl + pt + lt )

                                 = 2 ( 108 + 96 + 72 )

                                 = 552 cm²

sela

Bahasa Inggris Kelas 12

From : Corrinne von Schieveen, Human Resources

To : Hiroshi Nakamura

Date : October 9th 2008

THis notice serves to confirm payment of your household goods move. A households goods move include the relocation of your household goods from Toronto to one destination in the Atlanta area, and must be completed by the first anniversay of you employment.

  When you are ready to obtain an estimate of moving expenses, please pay a visit to the Human Resources department for assistance. We will put you in touch with our contracted carriers/ Once estimates are submitted to Human Resources for review and apporval, we will issue a letter of acceptance to the carries. If you should choose instead of hire a third party mover, we will proveide direct payment to that mover at the conclusion of you move.

Please feel free to contact me any questions

Pertanyaannya 

1. Who wrote the message ?

a. a personnel officer

b. a travel agent

c. a moving company employee

d. a forwarding company

e. a real estate agent

Yg benar A / C, Bu ?

2. The message tells us about ...

a. employee retirement plans

b. insurance claims

c. household goods movement

d. customer complaints

e. payment of moving expenses

Yg benar C / E, Bu ? Mohon penjelasannya,

3. What is indicated in the letter?

a. Payment must be sent immediately

b. The estimate of moving expenses has already been put

c. The values of Mr. Nakamura's home has increased

d. Estimates have not been accepted

e. Actions must be complted within a year.

Yg benar B / D / E ya, Bu ? Mohon penjelasannya.

Terima kasih 

1.c

2.c karena blm terjadi pindahan

3. d

tiara

Matematika Kelas 8

volume sebuah kubus sama dengan volume balok yaitun 1000 cm3.Diketahui panjang balok dua kali panjang kubus dan tinggi balok setengah kali lebar balok 

tentukan luas seluruh permukaan balok 

V balok = V kubus = 1000 cm²

 Panjang rusuk kubus = 10 cm

 Jadi panjang balok = 2 x 10 = 20 cm, tinggi balok = 2 x lebar, misal tinggi    balok = x, lebar = 2x

jadi V balok = (20) x ( 2x ) x (x) = 1000

                  = 40x²  = 1000

                         x² = 25

                         x   = 5

 jadi panjang balok = 20 cm, tinggi = 5 cm, lebar = 10 cm,

maka luas balok adalah = 2 ( pl + pt + lt )

                                   = 2 ( 200 + 100 + 50 )

                                   = 700 cm²  

sela

Bahasa Inggris Kelas 12

Mohon jawaban untuk bacaan ini :

National exam becomes the hot topic in most of discussion. Though the Supreme Court has rejected an appeal by the government on the implementation of the national exams, the controversy over whether it is essential to maintain the national exams has continued. Some debates include the primary questions such as : "Does the quality of Indonesian education rely on national exams?", "Will the quality of the Indonesian education system worsen without national examination?"

The government said that the objective of the National School examination was to raise the standard of education in our country. The minister of education added "The quality of the Indonesian education system will drop without the national examination because of that we will defend the current system". He said that besides improving the standard of education, the National School Examination was also to measure the fairness and the honesty of the participating students. There are also other reasons why national exam to be maintained. One of them is to nurture and balance out the diversity of Indonesia's human resources which are different from one region to another.

However, there are people who disagree with the opinion. Those who are against this nationa examination say that it doesn't need the national examination because the quality of education does not depend on the national examination. Further, the national examination only measures small portion of students' competence in specific subjects and does not measure students' competence throughout the year. They also argue that there are many frauds in its aplication; leaking documents, answer and question sheets as well as shamanism.

In fact national examination can still be useful as an instrument to evaluate or detect the level of students' cognitive competence in several subjects on a national scale. Ultimately, the nationa exam needs support and improvement.

Pertanyaan:

1. From the text above we learn that ...

a. there are more disadvantages than the advantages of national exams.

b. most people of Indonesia want to stop the national examinations.

c. the writer agrees with the national examinations

d. the writer doesn't want the national exams to be continued.

e. national exam is successful to improve the quality of education in our country.

Yg benar yg mana, bu ? B / C. mOhon alasannya.

2. The text tells us about...

a. the benefit and the weakness of national exams

b. the reasons why national exams should be stopped

c. disagreement with the national exam by the students

d. the advantages and disadvantages of national exams

e. the reasons why the government wants to continue national exam.

Yg betul yg A / D ? Mohon penjelasannya. Apa beda disadvantage dan weakness sama advantage dan benefit ?

Terima kasih. 

1.b karena penulis tidak pada posisi menolak atau menerima

2. d sudah jelas

sri budiarti

Matematika Kelas 8

Jiak f(2x - 1 ) = 6x - 2 tentukan f(x)

Misal : f( x ) = ax + b , maka f( 2x – 1 ) = a( 2x - 1 ) + b

 2ax - a + b = 6x - 2

 Jadi 2ax = 6x       dan -a + b = -2

        a = 6x : 2x          -3 + b = -2

        a = 3                          b = 1

sehingga f(x) = 3x + 1

devany avelia prawiro

Matematika Kelas 8

ass wr wb

1.sebuah bak mobil yang berukuran panjang 3m,lebar 2m,dan tinggi 1,5m akan diisi dengan keranjang telur yang berukuran 50cmx40cmx25cm, berat 1 keranjang telur=24 kg,berapa banyak telur di muat bak mobil tersebut??

Banyak telur yang dapat dimuat dalam bak mobil adalah :

( 300 x 200 x 150 ) : ( 50 x 40 x 25 ) x 24 butir = 4320 butir