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Pertanyaan
Pertanyaan
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Terima kasih pak atas penjelasannya, ada satu hal yg ingin kami tanyakan.
Utk pembahasan soal No 2, mengapa utk menghitung jari-jari dari belahan kerucut tsb harus dikalikan 3/4, mohon penjelasannya
Utk pembahasan soal No 2, mengapa utk menghitung jari-jari dari belahan kerucut tsb harus dikalikan 3/4, mohon penjelasannya
jawab;
Salam jumpa.
Dalam jawaban dikalikan 3/4 karena dalam soal disebutkan bahwa: pot diisi tanah 3/4 tingginya. Coba anda cermati soal yang anda kirim kemarin. Semoga cukup jelas.
Maaf pak ada pertanyaan yg tertingga, utk pembahasan soal no 1, mengapa keliling alas = 40 cm, bukankah 40 cm tsb adalah lebar, kemudian mengapa panjang kertas tdk digunakan dalam perhitungan, mohon penjelasannya
Selamat jumpa Duto...
Coba anda cermati soal yang Duto kirim kemarin, disana disebutkan : TINGGINYA SAMA DENGAN KERTAS KARTON TSB.
Dengan demikian panjang kertas 54cm menjadi tinggi tabung dan lebar kertas 40cm menjadi keliling alas.
Semoga jelas dan dapat bermanfaat.
1. Persamaan x2 - 3x -2m + 4 = 0 mempunyai akar-akar x1 dan x2, jika x13 - x23 = 45, tentukan nilai m
2. Persamaan x2 - 2x + m = 0 mempunyai akar-akar p dan q, Jika p/q2 + q/p2 = -10/9
Tentukan nilai m
Terima kasih
1. x13 - x23 = ( x1 - x2)3 + 3x12x2 - x1x22 = 45,
( x1 - x2)3 + 3x1x2(x1 - x2 ) = 45
x1 - x2 = - VD/4a
x1 + x2 = - b/a dan x1 x2 = c/ a , silahkan lanjutkan sendiri, ini hanya pemahaman
rumus saja , nanti akan ada persamaan dalam m dan m nnya ketemu
2. p/q2 + q/p2 = -10/9
samakan penyebutnya akan menjadi ( p3 + q3 ) /( pq)2
lanjutkan seperti diatas ya selamat mencoba
Tiga puluh lima buah kartu bernomor 1, 2, 3,.....,35. Diambil sebuah kartu secara acak. Tentukan peluang bahwa kartu yang terambil adalah bukan kartu bernomor prima!
Tolong di jawab ya? Terima Kasih
mas refaldo dapat mencari pasangan bilangan yang bilangan prima dari angka 1 sampai 35 misalnya ;
2,3,5,7,11,13,17,19,23,29,31 , cuma itu kan mas bilangan primanya?
berapa peluang nya ? ( 11/35) betulkan ?
jadi yang bukan prima = 1 - 11/35 = 24/35
satu kelas banyaknya 40 orang. diketahui 22 orang senang biologi, 18 orang senang keduanya. satu siswa dipilih secara acak. tentukan peluang :
a) terpilih seorang siswa yang gemar biologi
b) terpilih seorang siswa yang gema bahasa inggris saja
TERIMA KASIH.
coba mas ganang buat diagram venn nya, dari soal mas ganang
S = 40 , senang Biologi ( B ) B = 22 , senang Inggris( I ) dan Biologi ( B ) ..> I irisan B = 18 , sehingga yang senang Biologi saja ada 4 orang , senang bahasa Inggris 18 orang
a) terpilih seorang siswa yang gemar biologi = 4/40 = 1/10
b) terpilih seorang siswa yang gema bahasa inggris saja = 18/40 = 9/20
do you know what is the largest lizard? this lizard is called komdo. it lives in the scrub and woodland of a few indonesian islands. tentukan tense tip kalimatnya
do you know what is the largest lizard? this lizard is called komdo.
it lives in the scrub and woodland of a few indonesian islands.
Yang saya garis bawahi adalah verb 1 jadi tensesnya adalah present tense
dua angka dipilih secara acak dari angka-angka 1 sampai 9. jika jumlahnya bernilai genap maka peluang bahwa kedua angka itu merupakan bilangan ganjil adalah. . . .
dua angka dipilih secara acak dari angka-angka 1 sampai 9. jika jumlahnya bernilai genap maka peluang bahwa kedua angka itu merupakan bilangan ganjil adalah. . . .
coba mbak sari membuat pasangan - pasangan bilangan yang dimaksud, misalnya ;
(1,3), (1,5)... (1,9)
(2,2)... ((2,8) dstnya
jika mbak sari jumlahnya ada 24 betul tidak mbak ?
nah peluang kedua angka itu ganjil adalah = 13/24
sblmnya mksih ats jwbny kmrin, da pertnyaan lgi yg gk q phmi. 1. Bila seberkas chya dilwatkan pd kisi difraksi dg 5.000 celah/cm akn dihsilkan gris trang k'2 dg sudut deviasi 30drjat, trhdp gris nrmal. Berati pnjang gelombang chya yg d'gnkan adl ? 2. Cahaya monokromatis dg pnjng gelmbng 625 nm dtng tegak lrus pd shu kisi difraksi. Bayangn difrksi orde k'2 dibntuk dlm arah 30drjat trhdp yg d'mlki kisi adl ?
1. Diketahui : d = 1/(5000) cm = 2.10-6 m
n = 2, θ = 30o
Gunakan persamaan : d.sin θ = nλ (garis terang) atau d.sin θ = n 1/2 λ (garis gelap)
Maka λ = (d.sin θ)/n = 5.10-7meter = 5000 Angstrom
2. Untuk soal kedua ini, kami belum paham dengan soal dan pertanyaannya. mohon dicek kembali
Do you know how paper is made? Well, people make paper from trees. First, they cut down the trees that make good paper, and then they transport the logs to the factory. At the factory, they wash the logs to rinse away the dirt and other impurities. After that, the logs are put into machines to make small wood chips and then to process these chips into pulp.
This pulping process is to separate the wood fibers. This is important, because different kinds of paper need different kinds of fiber. So, that is why they have different techniques of pulping too. The pulp looks like a mushy and watery solution, but if you look at it with a microscope you can see the individual fibers. All have been separated.
When you get this, you are ready to make a paper. You do it by removing the water because 90% of the solution is water. To remove the water, they spray the soup on a long wide screen. They call this wire. And then the water runs to the bottom of the wire, and fibers are caught on the top side of the wire. Here, the fibers bond together and then make a thin mat, the fiber mat. Then people squeeze this mat with rollers to remove more water. After this pressing, the mat still contains water. It is about 60% of it.
Now the mat is ready to go to drying process. The mat, then, has to go through some rollers, sometimes a dozen of them. These hot rollers seal the fibers closer and closer, and eventually turn the mat into paper.
To make paper with the same thickness, people use a paper machine. It is called the calendar. This machine has big iron rollers that press and dry paper smooth with the same thickness. From here, you can do everything else. You can coat it with fine day to make it glossier or easier to print on, and so on. That is why paper comes in different sizes, thickness, and appearance.
kak, tolong carikan semua phrase yang ada d teks d atas,,,,
Do you know how paper is made? Well, people make paper from trees. First, they
cut down the trees that make good paper, and then they transport the logs to the factory. At the factory, they wash the logs to rinse away the dirt and other impurities. After that, the logs are put into machines to make small wood chips and then to process these chips into pulp.
This pulping process is to separate the wood fibers. This is important, because different kinds of paper need different kinds of fiber. So, that is why they have different techniques of pulping too. The pulp looks like a mushy and watery solution, but if you look at it with a microscope you can see the individual fibers. All have been separated.
When you get this, you are ready to make a paper. You do it by removing the water because 90% of the solution is water. To remove the water, they spray the soup on a long wide screen. They call this wire. And then the water runs to the bottom of the wire, and fibers are caught on the top side of the wire. Here, the fibers bond together and then make a thin mat, the fiber mat. Then people squeeze this mat with rollers to remove more water. After this pressing, the mat still contains water. It is about 60% of it.
Now the mat is ready to go to drying process. The mat, then, has to go through some rollers, sometimes a dozen of them. These hot rollers seal the fibers closer and closer, and eventually turn the mat into paper.
To make paper with the same thickness, people use a paper machine. It is called the calendar. This machine has big iron rollers that press and dry paper smooth with the same thickness. From here, you can do everything else. You can coat it with fine day to make it glossier or easier to print on, and so on. That is why paper comes in different sizes, thickness, and appearance.
Tolong maternya tentang Definisi, Pola, dan contoh dari PLURAL FORMS!!
Terima Kasih.. :D
Kata benda dalam bahasa Inggris (terutama benda yang bisa dihitung), selain mengenal bentuk singular, juga ada bentuk plural yang bentuk dan penulisan bisa berbeda.
Contoh:
singular + -s
| singular | plural |
| a car | two cars |
| a cassette | two cassettes |
| a lamp | two lamps |
| a hat | two hats |
| a cup | two cups |
Add -es after sibilants:
| singular | plural |
| a box | two boxes |
| a sandwich | two sandwiches |
| a suitcase | two suitcases |
| a rose | two roses |
| a garage | two garages |
Substitute y after consonant with -ies:
| singular | plural |
| a city | two cities |
| a lady | two ladies |
Add -s after vowel + y:
| singular | plural |
| a boy | two boys |
| a day | two days |
There are two forms of the plural of the word penny:
pennies -> You refer to the coins.
pence -> You refer to the price (how much sth. is).
Nouns on -f or -fe:
| add -s | substitute with -ves | ||
| singular | plural | singular | plural |
| a roof | two roofs | a thief | two thieves |
| a cliff | two cliffs | a wife | two wives |
| a sheriff | two sheriffs | a shelf | two shelves |
There are two forms possible:
scarf - scarfs/scarves
hoof - hoofs/hooves
Add -s for words ending in -ff.
Always use a dictionary if you are not sure.
Nouns on -o form the plural by adding -s or -es.
| add -s | substitute with -ves | ||
| singular | plural | singular | plural |
| a disco | two discos | a tomato | two tomatoes |
| a piano | two pianos | a potato | two potatoes |
| a photo | two photos | a hero | two heroes |
Some nouns can have two plural forms:
buffalo - buffalos/buffaloes
mosquito - mosquitos/mosquitoes
tornado - tornados/tornadoes
There is no rule when to use -s or -es. We often add -s with technical words.
Irregular plural forms:
| singular | plural |
| a man | two men |
| a woman | two women |
| a child | two children |
| a mouse | two mice |
| a tooth | two teeth |
| a goose | two geese |
| a foot | two feet |
| an ox | two oxen |
In English there are nouns which are used only in the plural.
1) Pair nouns
| noun | sentence |
| jeans | Where are my jeans? |
| glasses | She has lost her glasses. |
| scissors | These scissors don't cut well. |
If you want to refer to an exact number, use a/one pair of, like in the following example.
I have bought a/one pair of jeans.
I have bought two pairs of jeans.
other nouns: binoculars, headphones, pyjamas, scales, shorts, tights, trousers
2) Nouns not used in the singular (headwords)
| noun | sentence |
| cattle | Male cattle are called bulls. |
| clothes | He bought some new clothes yesterday. |
| stairs | The children ran down the stairs. |
| wages | The wages are paid on the last day of the month. |
| people* | Three people were killed in the car crash last Friday evening. |
| police | Look! The police are coming. |
* The word people can be used in the singular with another meaning:
They are a friendly people.
The native peoples of Africa often have black skins.
3) Nationalities
The following nationalities (no -s) are used in the pural:
the Dutch, the British, the English, the French, the Spanish, the Welsh
The singular of the English would be: the Englishman
