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. 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
5. 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 Sentences6. What is the difference between behaviorism and cognitivism? What is similarity between constructvism and progressivism?
Jawaban:
-The difference between the behavioristic school and the cognitive school is: first, behavioristic theory emphasizes the influence of the environment, while cognitive theory is more concerned with what is in oneself.
-
7. 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.
8. 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.
9. 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:
10. 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
11. 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
12. 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
13. What is the difference between a and an?
Kalau a untuk yang huruf setelahnya berupa huruf konsonan, sedangkan an untuk yang huruf setelahnya berupa huruf vocala itu untuk kata yg berawalan huruf konsonan.
kalau an untuk kata yg berawalan huruf vokal.
contoh:
a Tiger
an elephant
14. what is difference between a tree and bushes
tree
.................trees taller than bushes and trees have trunks while the bushes does not have a trunks
15. 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
16. 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
17. northwest is between ..... And......
north and west............north and west
maaf klau salah
18. Russia is part of Eurasia. What is the reason? Choice pick one only A.Russia is located between Europe and North America. B.Russia is located between Europe and Africa. C.Russia is located between Asia and Europe. D.Russia is located between Oceania and Asia.
Jawaban:
Russia is part of Eurasia. What is the reason?
Choice pick one only
A.Russia is located between Europe and North America.
B.Russia is located between Europe and Africa.
C.Russia is located between Asia and Europe.
D.Russia is located between Oceania and Asia.
I hope this helps!!!
Jawaban:
C. Russia is located between Asia and Europe.
Penjelasan:
Russia spans the northern part of the Eurasian continent; 77% of Russia's area is in Asia, the western 23% of the country is located in Europe
19. northwest is between.....................and...........
northwest it between North and WestNorthwest is between north and west
20. my is between...and...
Jawaban:
mother and father
Penjelasan:
artinya aku ada di antara ibu dan ayah
makasih
semoga membantu
maaf kalau salah
0 komentar:
Posting Komentar