A curve is such that dy/dx =3x² + kx where k is a constant. Given that the curve passes through the points (1,6) and (2, 1), find a) the value of k b) the equation of the curve.
1. A curve is such that dy/dx =3x² + kx where k is a constant. Given that the curve passes through the points (1,6) and (2, 1), find a) the value of k b) the equation of the curve.
mungkin seperti itu ...
jawab:
integral dy = y = f(x)
[tex]{x}^{3} + \frac{k}{2} {x}^{2} + c[/tex]
point (1,6) ->
[tex]f(1) = {1}^{3} + \frac{k}{2} {1}^{2} + c = 6 \\ = > 1 + \frac{k}{2} + c = 6 \\ = > 2 + k + 2c = 12 \\ = > k + 2c = 10...(i)[/tex]
point (2,1)
[tex]f(2) = {2}^{3} + \frac{k}{2} {2}^{2} + c = 1 \\ = > 8 + 2k + c = 1 \\ = > 2k + c = - 7...(ii)[/tex]
from (i) and (ii):
3c = 27 --> c = 9
a. the value of k --> k = 10-18= -8
b. the equation of the curve:
[tex]f(x) = {x}^{3} - 4 {x}^{2} + 9[/tex]
2. Map A And B describe the same region. Map A has no scale and the scale of map B is 1 : 200,000.on map A The distance between points X and Y is 2 cm Meanwhile the distance between points X and Y on map B is 10 cm. The scale of map A is
Tolong Diartikan Dalam Bahasa Indonesia
3. The demand curve is: QD = 500 - 1/2 P. a. Calculate the (point) price elasticity of demand when price is $100 and Q = 500. Is demand elastic or inelastic? b. Calculate the (point) price elasticity of demand when price is $700 and Q = 500 . Is demand elastic or inelastic? c. Find the point at which point elasticity is equal to -1.
Jawaban:
1000 karena tidak tahu
4. indonesia is a big country.is between two continentsasia and australia ,and between
Jawaban:
The Republic of Indonesia, or simply called Indonesia is a country in Southeast Asia, located on equator and situated between two continents namely Asia and Australia and between Pacific Ocean and Indian Ocean
Penjelasan:
5. ketika harga berada pada angka Rp5.000 jumlah permintaan dari barang tersebut adalah 25 unit ketika harga barang tersebut naik menjadi Rp7.000 jumlah permintaan menjadi 15 unit berdasarkan Gambaran tersebut barang tersebut tergolong sebagai barang A. elastic B. inelastic C. elastic uniter D. elastic sempurna E. inelastic sempurna
Jawaban:
Ketika harga berada pada angka Rp.5.000 jumlah permintaan dari barang tersebut adalah 25 unit ketika harga barang tersebut naik menjadi Rp.7.000 jumlah permintaan menjadi 15 unit berdasarkan Gambaran tersebut barang tersebut tergolong sebagai barang inelastic
A. elastic
B. inelastic
C. elastic uniter
D. elastic sempurna
E. inelastic sempurna
Penjelasan:
Diketahui :
P1 = Rp.5.000
Q1 = 25
P2 = Rp.7.000
Q2 = 15
Ed= (Q2-Q1)/(P2-P1) × P1/Q1
= (15 - 25) / (7.000 - 5.000) x 5.000 /25
= -10 / 2.000 x 200
= -1
Karena nilai elastisitasnya kurang dari 1 maka barang tersebut tergolong sebagai barang inelastis.
Pelajari lebih lanjut materi tentang hubungan pendapatan dengan elastisitas permintaan barang brainly.co.id/tugas/7872841
#BelajarBersamaBrainly
6. the line[tex]y = 18 - 3x[/tex]intersects the curve [tex] {y}^{2} = 9x[/tex]at points a and b.find1) the coordinates a and b2)the coordinates of the mid point of the line joining a and b3)the distance between a and b
(18-3x)²= 9x
324 - 108x +9x²=9x
9x²- 117x + 324 =0
x² - 13x + 36 = 0
(x - 9)(x - 4) = 0
x = 9 ; x = 4
jika x=9 maka y = 18-3(9) = -9
jika x=4 maka y = 18-3(4) =6
koordinat titik A(9, -9)
koordinat titik B(4, 6)
mid point (13/2, -3/2)
jarak titik A dan B √178
maaf jika salah.
:d
7. northwest is between ..... And......
north and west............north and west
maaf klau salah
8. 5 points a. 16. oo b. 17.oo c. 18.oo d. 19.oo 15. Jika di Merauke pukul 18.oo , maka di Manado pukul …. * 5 points a. 16. oo b. 17.oo c. 18.oo d. 19.oo 16. Jika di Medan pukul 17.oo , maka di Manado pukul …. * 5 points a. 16. oo b. 17.oo c. 18.oo d. 19.oo 17. Jika di Jakarta pukul 17.oo , maka di Medan pukul …. * 5 points a. 16. oo b. 17.oo c. 18.oo d. 19.oo 18. Arah rotasi bumi adalah …. * 5 points a. Dari timur ke barat b. Dari barat ke timur c. Dari barat ke selatan d. Dari sabang sampai Merauke 19. Waktu yang diperlukan bumi untuk begeser dari Merauke ke Sabang sekitar …. Jam * 5 points a. 1 b. 2 c. 3 d. 4 20. Dalam waktu 3 jam, bumi beputar ….. derajat. * 5 points a. 15 b. 30 c. 45 d. 360
Jawaban:
15. b. 17.00
Penjelasan: karena Merauke masuk WIT dan Manado masuk WITA, sehingga waktu di Manado satu jam lebih lambat daripada di Merauke. Maka di Manado pukul 18.00 - 1 jam = 17.00 WITA.
16. c. 18.00
Penjelasan: Karena Medan masuk WIB dan Manado masuk WITA. Sehingga waktu di Manado satu jam lebih cepat dari pada waktu di Medan. Maka di Manado pukul 17.00 + 1 jam = 18.00 WITA
17. b. 17.00
Penjelasan: karena Medan dan Jakarta sama-sama masuk WIB. Sehingga waktu kedua kota ini SAMA karena berada di zona waktu yang sama. Maka di Medan sekarang juga pukul 17.00 WIB seperti di Jakarta.
18. b. Dari barat ke timur.
Penjelasan: karena arah rotasi bumi melawan arah jarum jam. Karena hal ini, kita melihat matahari terbit di ufuk timur sedangkan terbenam di ufuk barat. Sehingga melalui hal ini, di planet bumi dapat terjadi siang dan malam. PELAJARI LEBIH LANJUT DI https://brainly.co.id/tugas/73518.
19. a. 3 jam
Penjelasan: Karena jarak dari Sabang ke Merauke (zona waktu WIB sampai WIT) adalah 45 derajat BT. Karena satu zona waktu dengan lainnya berjarak setiap 15 derajat BT , kalau di indonesia ada 3 zona waktu maka jarak dari sabang-merauke = 15°x 3 zona = 45°BT. Kalau tiap 15°BT membutuhkan waktu 1 jam (360° : 24jam) maka 45°BT (15 x 3) membutuhkan waktu 3 JAM.
20. c. 45°
Penjelasan = seperti jawaban no 19 tadi, maka tinggal dibalik saja. 3 Jam = 45° karena setiap 1 jam berputar sejauh 15°Bujur Timur. Jadi jawabannya adalah 45 DERAJAT.
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SEMOGA MEMBANTU!!MAAF KALO MEMBINGUNGKAN^^9. my is between...and...
Jawaban:
mother and father
Penjelasan:
artinya aku ada di antara ibu dan ayah
makasih
semoga membantu
maaf kalau salah
10. Soal symmary. (Time travel would mean tarvelling between points in time in a way that is 1....... To how we now move between points in space
Jawaban
Time travel would mean travelling between points in time in a way that is similar to how we now move between points in space.
Pembahasan & TerjemahanPerjalanan (mengarungi) waktu berarti melakukan perjalanan di antara dua titik waktu dengan cara yang mirip dengan bagaimana kita berpindah antara dua titik ruang.
Ungkapan yang cocok untuk mengisi tempat kosong pada kalimat adalah similar karena kata ini adalah kata sifat yang selalu diikuti oleh kata to jika diikuti oleh kata benda kedua selain kata benda sebelumnya.
----------------------------------------------- Detil Tambahan Kelas: SMP Mapel: Bahasa Inggris Materi: Summary, Completing Sentences Kata Kunci: Summary, Completing Sentences11. May is between... and....
Karena materi tidak jelas, jadi aku menggunakan materi penulisan bulan - bulan dalam tahun ya.
January
February
March
April
May
June
July
August
September
October
November
December
So, we can conclude that :
May is between April and June.
(Mei berada di antara April dan Juni)
Semoga membantu.
12. Find x so that the distance between the points (-2,-3) and (-8,-x) is equal to 10.
Penjelasan dengan langkah-langkah:
distance [tex]=\sqrt{(-2-(-8))^2+(-3-(-x))^2}[/tex]
[tex]10=\sqrt{6^2+(-3+x)^2}[/tex]
[tex]100=36+(x^2-6x+9)[/tex]
[tex]x^2-6x+45-100=0[/tex]
[tex]x^2-6x-55=0[/tex]
[tex](x-11)(x+5)=0[/tex]
[tex]x_1=11[/tex]
[tex]x_2=-5[/tex]
So, x is -5 or 11.
13. The diatance between the points (14,0) and ( 5 , y ) is 15 units , find the possible values of y
Jawaban:
y=12
Penjelasan dengan langkah-langkah:
Jarak antara titik (14,0) dan (5,y) adalah 15 satuan, tentukan nilai y yang memungkinkan
---------------------------------------------------------------------
(5-14,y-0)
=(-9,y)
Jarak terdekat antara dua titik menggunakan pitagoras
c²=a²+b²
a²=c²-b²
[tex]a = \sqrt{ {c}^{2} - {b}^{2} } [/tex]
[tex]y = \sqrt{ {15}^{2} - {( - 9)}^{2} } [/tex]
[tex]y = \sqrt{225 - 81} [/tex]
[tex]y = \sqrt{144} [/tex]
y=12
14. 1. The short-run supply curve of the perfectly competitive firm is given by …. a. the rising portion of its MC curve over and above the shut-down point a. the rising portion of its MC curve over and above the break-even point a. the rising portion of its MC curve over and above the AC point a. the rising portion of its MC curve over and above the total losses a. the rising portion of its MC curve 2. In the oligopoly industry, there is a demand curve according to the Sweezy model which is shaped ... a. broken, the top is inelastic and the bottom is elastic b. broken, elastic upper and inelastic bottom c. decreases from top left to bottom right, elastic d. decreases from top left to bottom right, inelastic e. horizontally 3. If AVC = Q^2 + 3Q + 5, fixed costs = Rp 10,000, AR = 2Q^2 - 100Q + 10. At what quantity is the company's Average Revenue reach maximum? a. 15 units b. 20 units c. 25 units d. 30 units e. there is no right answer 4. In producer theory, if there is an increase in the interest rate and the salary level proportionally, then .... a. isocost will rotate inward b. isocost will rotate outward c. isocost will shift left d. isocost will shift right e. there is no right answer 5. Firms in a monopoly market attempt to extract the entire consumer surplus using a price strategy. This strategy is known as .... a. first degree price discrimination b. second degree price discrimination c. third degree price discrimination d. predatory price e. there is no right answer
Jawaban:
1. A. the rising portion of its MC curve over and above the shut-down point
15. What is the differents between traditional points of view curriculum and progressive points of view of curriculum ? Tlong di jawab yah :)
Apa perbedaan antara kurikulum sudut pandang tradisional dan sudut pandang kurikulum yang progresif?
Jawab
Traditional indicated curriculum differences with modern indicated curriculum, in terms of:
a. The Role of Pebelajar
b. The Role of Learners
c. Material Status Lesson
1. Traditional curriculum is defined as all subjects given in an educational institution or narrowly in a subject or as a set of subjects that are needed for graduates or to obtain a diploma in one particular field of study.
According to Nengly and Evaras (1976): The traditional curriculum is a planned experience undertaken by the school To help students achieve learning outcomes to the best students' abilities.
Modern curriculum according to Alice Mil (Hendiyat Soetopo, 1982): covers the building, school atmosphere, wishes, beliefs, knowledge, skills and attitudes of people who serve and diladeni school students, society, and educators in it also including school guard, clerks, school nurses and other school-related staff.
The curriculum according to Teaching on Learning (1956). The modern curriculum of all school endeavors to influence children's learning, whether in the classroom, in the school yard, or outside school including teaching. The modern curriculum includes also what
16. northwest is between.....................and...........
northwest it between North and WestNorthwest is between north and west
17. The bank is between drugstore and cinema. Themeaning of between is ....the bank is between drugstore and cinema. the meaning of between is ....
Jawaban:
meaning : on the middle of
meaning kalau translate ke indonesia : diantara
Jawaban:
Meaing of between adalah Di antara
18. What is the difference between letter and e-mail
e-mail or electronic-mail use internet
letter use manual sendingLetter is message create on paper and manually written by someone
E-mail is modern electronic and sending those message over internet transmitter
19. Given two points P ( 4,5 ) and Q ( -2, -3 ). The distance between P and Q is?... Tolong bantuanya ya guys :)
PQ =
[tex] \sqrt{ {(x2 \: - x1)}^{2} + {(y2 - y1)}^{2} } [/tex]
[tex] \sqrt{ {(4 - ( - 2))}^{2} + {(5 - ( - 3))}^{2} } [/tex]
[tex] \sqrt{ {(4 + 2)}^{2} + {(5 + 3)}^{2} } [/tex]
[tex] \sqrt{ {6}^{2} + {8}^{2} } = \sqrt{36 + 64} [/tex]
[tex] \sqrt{100} = 10[/tex]
The distance between P and Q is 10
20. Soal symmary. (Time travel would mean tarvelling between points in time in a way that is 1....... To how we now move between points in space
that is 1 time to how no
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