Find the maximum and minimum point for y=3+4x³-x⁴. Sketch the graph of the curve.
1. Find the maximum and minimum point for y=3+4x³-x⁴. Sketch the graph of the curve.
Jawab:
Penjelasan dengan langkah-langkah:
[tex]y = 3+4x^3 - x^4\\\\y' = 12x^2 - 4x^3 = 0\\\\x^3 - 3x^2 = 0\\\\x^2(x-3) = 0\\\\x = 0 \;\cup\; 3\\\\y'' = 24x - 12x^2 = 0\\\\x^2 - 2x = 0\\\\x(x-2) = 0\\\\x = 0 \;\cup\; 2\\\\y''' = 24-24x = 0 => x = 1\\\\ y'''' = -24\\\\\begin{minipage}{15em}berdasarkan turunan keempat, ketiga, kedua, dan pertama :\\\\- f(x) terbuka keatas dan memiliki minimum pada interval $0 < x < 2$ \\\\- f(x) terbuka kebawah dan \\memiliki maksimum pada \\interval $x < 0$ atau $x > 2$ \\\\\end{minipage}[/tex]
[tex]\begin{minipage}{15 em}- f(x) memiliki perubahan kecekungan parabola singgung terbesar pada x = 1\\\\- berdasarkan turunan kedua maka f(x) memiliki maksimum lokal di x = 3\\\\- x = 0 pada interval $ 0< x < 2 $ bukan merupakan maksimum maupun minimum, tetapi secara keseluruhan tanpa interval x = 0 merupakan minimum f(x) (karena maksimum f(x) sudah ditemukan)\end{minipage}[/tex]
[tex]\begin{minipage}{15 em}- Nilai turunan keempat negatif dan mempengaruhi sifat turunan diatasnya \\- f(x) monoton turun ketika $x > 3$ dan monoton naik untuk \\$x < 0 \;\cap\; 0<x<3$ \\(netral pada x = 0)\end{minipage}[/tex]
maximum = f(3), "minimum" = f(0) = 3 = titik potong sumbu y
maximum = 3+4(3)³ - 3⁴ = 30
2. now,use the table below to practice the dialog in section b
sekarang, gunakan tabel dibawah untuk berlatih percakapan dibagian b
3. now,use the following cues to practice the dialogs in section a
Translate:
sekarang, gunakan isyarat berikut untuk mempraktekkan dialog di bagian a...
Sekarang gunakan isyarat berikut untuk mempratekkan bagian a
Semoga membantu
4. 2. You plan to go to the movie this weekend. You ask several friends to go with you. TWo of your friends definitely agree with you, but the other two cannot make up their minds. Use the expressions in the previous section in the conversation.
Kamu berencana untuk ke bioskop minggu ini. Kamu meminta beberapa teman untuk pergi denganmu. Dua dari temenmu akhirnya menyetujui untuk pergi denganmu, namun dua orang lainnya tidak dapat mengubah pemikirannya. Gunakan ekspresi dibagian sebelumnya dalam percakapan tersebut
5. 1.) Are there any side effects associated With the use of this medicine?2.) According to this label, what are some reasons that someone might have to contact a doctor before or after giving this medicine?3.) What section of the label would you refer to in order to determine the correct dose?4.) Why do you think the section of the drug facts label appear in the order?5.) What text features are used to make the label easy to understand?Please Kak Di Bantu Dong:)
1.Yes, there is
2.To ask about the side effects of these products
3.In the Drug facts
4.So that users can choose products that will harm them
5. Text features that contain the benefits of the product, And side effects for unsuitable users.
6. What is the purpose of the memo? A. To announce the new purchase. B. To inform workers of the schedule. C. To change the leaders of each section. D. To eliminate unnecessary work. E. To tell the leaders of each section.
Jawaban:
B. To inform workers of the schedulePenjelasan:
tujuan dari dibuatnya memoadalah "giving information to the all company employees
7. 2. You plan to go to the movie this weekend. you ask several friends to go with you.Two of your friends definitely agree with you , but the other two cannot make up their minds. use the expressions in the previous section the conversation
artinya: Anda berencana untuk pergi ke bioskop akhir pekan ini, Anda meminta beberapa teman untuk pergi dengan Anda, Dua teman Anda pasti setuju.
8. the use of this body part is to protect eyes from dust
eyelid (kelopak mata)
maaf kalau salah
Eyelid atau kelopak mata
9. This can explains us of how to use the dosage of the product such as medicine
Jawaban:
prodecure
Penjelasan:
maaf klo salah
10. A section of a book contains six pages.the sum of all the page numbers in this section is 507.what is the first page number in this section
1 seksi = 6 halaman
Ringkasan = halaman 507 (termasuk di dalam 6 halaman)
507-(6-1) = 502 adalah halaman pertama
11. 1. identify the use of to be.2. identify the use of to have.3. identify the use of simple present.
Jawaban:
mengidentifikasipenggunaantobe.mengidentifikasipenggunaantoheve.mengidentifikasipenggunaan tosimplepresent.12. Use a dictionary to complete this sentence: One of the police duties is to…
Jawaban:
one of the police duties is to maintain public security and order
Jawaban:
catch the criminal
Penjelasan:
semoga jawabannya bisa membantu
13. In this section of the test you will hear
Jawaban:
Di bagian tes ini Anda akan mendengar ini artinya
Penjelasan:
maksudnya ini apa ya ?
di bagian set ini anda akan mendengar
14. tolong dibantu The name of the product... * The brand of the product * The description of the product? * The use of the product ... * The content of the product... * The direction to use of the product... The direction to use of the product... The expiration date of the product... *
Jawaban:
* The name of the product Augmentin
* The brand of the product SB SmithKline Beecham
* The description of the product
Augmentin
Amoxicillin/ Clavunalate potassium
When reconstituted, each 5 ml contains:
-Amoxicillin 125 mg, as the trihydrate,
-Clavulanic Acid 31,25 mg, as the clavunalate potassium
* The content of the product Amoxicillin, Clavulanic Acid
* The direction to use of the product
Direction for mixing(tulis semua kalimatnya sesuai yg digambar), Dosage(tulis semua kalimatnya sesuai yang digambar)
* The expiration date of the product 10 Days
#MogaMembantuYah
#PilihTerbaikYah
15. you plan to go to the movie this weekend. you ask several friends to go with you. two of yours friends definitely agree with you, but the other two cannot make up their minds. use the the expession in the previous section in the conversatin
Anda berencana untuk pergi ke bioskop akhir pekan ini. Anda meminta beberapa teman untuk pergi dengan Anda. dua dari Anda teman pasti setuju dengan Anda, tetapi dua lainnya tidak dapat membuat pikiran mereka. menggunakan expession di bagian sebelumnya di conversatin yang
16. Arti go to the library this week visit the english section
perpustakaan minggu kunjungan bagian inggris inipergi ke perpustakaan minggu ini mengunjungi bagian inggris
17. The curve [tex]C[/tex] has equation [tex]y=f(x)=xe^{-x^{2}}[/tex] [tex](i)[/tex] Sketch the curve [tex]C[/tex] (Jelaskan metode yang tepat untuk membuat grafik tanpa bantuan alat, misalnya tabel dan lainnya) [tex](ii)[/tex] Find the exact coordinates of the turning points of the curve [tex](iii)[/tex] Use the substution [tex]u=x^{2}[/tex] to find [tex]\int\limits^n_0 {f(x)} \, dx[/tex] for [tex]n\ \textgreater \ 0[/tex]. Hence find the area of the region between the curve and the positive [tex]x-axis[/tex]
Penjelasan dengan langkah-langkah:
dilampirkan pada gambar
CMIIW
18. 12. Find the area of the shaded region, where O is the centre of the circle. 13. The cross section of a foot stool and its dimensions are shown in Fig. (a): (i) Find the area of the cross section of the stool. (ii) The manufacturer is considering changing the cross section of this stool to that shown in Fig. (b), where arc ABC is a semicircle. Calculate the percentage increase or decrease in the area of the cross section.
Jawab:
Penjelasan dengan langkah-langkah:
ABCD = 1/2(15+13+12) x 24 = 480 cm²
EGDH = 13x16=208
COB= 1/2 x 1/4πD²
= 1/2 x 1/4 x 22/7 x 15²
= 88,4 cm²
Area of the shaded region :
= 480-208-88,4 = 183,6 cm²
A1 = 1/2(35+40) x 30 = 1125 cm²
A2 = 1/2(15+30) =337,5 cm²
A3 = 1/2 x 1/4πD²
= 1/2 x 1/4 x 22/7 x 30²
= 353,57 cm²
A3-A2 = 353,57 - 337,5 = 16,07 increase
Percentage of increase is 16,07/353,57 x 100% = 4,76%
19. now use the following cues to practice the dialoghs in section a
Jawaban:
sekarang gunakan isyarat berikut untuk mempraktikkan dialog di bagian a
Penjelasan:
di sini saya cuma translate'in aja sisanya kamu yang kerjakan;-)
20. you pln to go to the movie this weekend.you ask Several friends to go with you. two of your friends definitely agree with you, but the other two connot make up their minds. use the expressions in the previous section in the conversation
Liat digambar.
Smoga membantu^^
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