請問e小題怎麼算，謝謝🙏

a POPULATION GROWTH It is estimated that 1 years from now, the population of a certain 6 suburban community will be P(1) = 20 - t + 1 thousand inst . a. Derive a formula for the rate at which the population will be changing with respect to time t years from now. b. At what rate will the population be growing 1 year from now? c. By how much will the population actually increase during the second year? d. At what rate will the population be growing 9 years from now? e. What will happen to the rate of population growth in the long run?

求解21,22,38🙇 section1.3不用理他 equation 2.1.5是微分的定義式

(d) Use the definition of derivative to prove that your guess in part (c) is correct. 14-21 Find the derivative of the function using the definition of derivative. State the domain of the function and the domain of its derivative. 14. f(x) = 3x - 8 15) f(x) = mx + b 16. f(x) - 4 + 8x - 5x? (17) f(x) = x - 3x + 5 18. f(x) - x + V g(x) - 19- x? - 1 20. f(x) 21s(x) x2 2.x - 3 (hours) arger. The graph hat the battery purs). (r)? graph - a 22.) a) Sketch the graph of f(x) - V6 - x by starting with the graph of y # and using the transformations of Section 1.3. (b) Use the graph from part (a) to sketch the graph of f! (c) Use the definition of a derivative to find f'(x). What are the domains of f and f'? (d) Use a graphing device to graph f' and compare with your sketch in part (b). lo-TE 23. (a) If f(x) = x + 1/x, find f'(x). (b) Check to see that your answer to part (a) is reasonable by JE comparing the graphs of f and f'. 1 (hours) shows how 24. The table given tho hai

請問要怎麼修改此試算表呢？ 謝謝

5,000 Divendends II. The trial balance of Drysdale Company shown below does not balance. DRYSDALE COMPANY Trial Balance June 30, 2020 Debit Credit Cash £9,873 15,200 1,200 46,600 Accounts Receivable Supplies Equipment Accounts Payable Share Capital-Ordinary Dividends £ 20,432 39,000 3,000 Service Revenue 30,400 7,600 Salaries and Wages Expense Maintenance and Repairs Expense 3,200 £86,673 £89,832

想請問E是錯在哪裡？ 中節是只發生於mitotic phase（DNA濃縮且複製完畢時）嗎？還是當DNA在S phase 複製時就有了？ 如果是發生於mitotic phase ，又此時期很短，所以一般我們看到的都是細胞處於interphase

D 5) Suppose a biologist can separate one of a dozen pieces of chromatin from a eukaryotic (animal) nucleus. It might consist of which of the following? woon A) one-twelfth of the genes of the organism B) two chromosomes, each with six chromatids C) a single circular piece of DNA LD) two long strands of DNA plus proteins erns that we tot protein E) two chromatids attached together at a centromere 付 也

求這兩題詳解～😢😢

- ons is nilot od plass lo gorol arai (s) 29vom Sion los = 9 ) A 170 kg crate hangs from the end of affope of length L = 12.0 m. You push 人 horizontally on the crate with a varying force É to move it distance d = 3.50 m to L the side (Fig. 7-20). (a) What is the mag- nitude of † when the crate is in this final position? During the crate's displace-lid 250 bisw ment, what are (b) the total work done 32 on it, (c) the work done by the grav- 16 Hoold itational force on the crate, and (d) the kd work done by the pull on the crate from the rope? (e) Knowing that the crate is Figure 7-20 Problem 9. motionless before and after its displace- ment, use the answers to (b), (c), and (d) to find the work force + does on the crate. (f) Why is the work of your force not . ( equal to the product of the horizontal displacement and the answer to (a)? - -- your

會計一第二章 這題每一項的翻譯麻煩完整寫給我我 譬如為什麼這時後要加這時候要減 我真的不會！拜託各位大神解！

Pre P2.4 (LO 4) The trial balance of De Bortoli Co, shown below does not balance, De Bortoli Co. Trial Balance June 30, 2020 Debit Credit $ 3,340 $ 2.812 1,200 2.600 3.666 1.100 Cash Accounts Receivable Supplies Equipment Accounts Payable Uncarned Service Revenue Share Capital-Ordinary Dividends Service Revenue Salaries and Wages Expense Utilities Expense 8,000 800 2,480 3,200 810 $12.522 $17.486 that şi eu Each of the listed accounts has a normal balance per the general ledger. An examination of the ledger. and journal reveals the following errors. this 1. Cash received from a customer in payment of its account was debited for $580, and Accounts Receivable was credited for the same amount. The actual collection was for $850, V2. The purchase of a computer on account for $710 was recorded as a debit to Supplies for $710 and a credit to Accounts Payable for $710. ✓ 3. Services were performed on account for a client for $980. Accounts Receivable was debited for $980, and Service Revenue was credited for $98. X4. A debit posting to Salaries and Wages Expense of $700 was omitted. 第二 X 5. 5. A payment of a balance due for $306 was credited in Cash for $306 and credited to Accounts Payable for $360. 76. A dividend of $600 cash was debited to Salaries and Wages. Txpense for $600 and credited to Cash for $600. Instructions

求解33題 感恩🙇

30. lim x csex 21 29. lim sec ---(4/2)+ x x 22 31. lim x==2 4x + 4 32. lim X-2+ x x² - 2x - 8 x² - 5x + 6 8 33. Find the vertical asymptotes of the function x? + 1 3x - 2.x2 1 ||||| 1 34. Determine lim and lim X-TX r- (a) by evaluating f(x) = 1/(x - 1) for values of x that ap- proach 1 from the left and from the right, (b) by reasoning as in Example 8. 35. (a) Evaluate the function f(x) = x2 - (24/1000) for x = 1.

求解28題 感恩🙇

36. Sup ang 22-25 Explain, using Theorems 4, 5. 7. and 9. why the function is continuous at every number in its domain. State the domain. 2.x2 - x - 1 2 22. F(x) 23. 20) = r2 + 1 By Le (a) (b 24. h(x) = cos(1 – x?) 25. M = N DI 38. W tir 26-29 Use continuity to evaluate the limit. 26. lim x 20 – x2 27. lim sin(x + sin x) ULTET (28) lim x'tan r 11/4 29. lim x®/Vx2 + x - 2 IX 30. Show that f is continuous on (-00, ). 39. S f(x) = x2 if x < 1 x-1 if x>1 31-32 Find the numbers at which f is discontinuous. At which of these numbers is f continuous from the whı sont o LINE TERANG 1633 是

求解答案是否正確

Multiple-choice questions: (70 points) write the letter of statement that is not true: 1. A.B.U The Drude Model: (a) It is a classical approach using concepts from the kinetic theory of gases. (b) A relaxation-time approximation is used where the probability of collision is l/t. (c) No forces act on the electrons in between collisions. (d) It predicts accurately the electronic heat capacity of metals. 2. The Sommerfeld Model: (a) The crystal potential is replaced by an average Coulomb potential. (b) The separation of states is so close that a continuum model can be applied. (c) The electrons are highly localized due to a strong crystal potential. (Q) The energy of the highest occupied state at 0 K is the Fermi energy. 3. Density of states in k-space, N(k): (a) N(k) is determined by the boundary value conditions. (b) For lattices in any dimensions, N(k) is constant in k-space. (C) N(k) depends on the direction and magnitude of k. (d) It is directly proportional to the volume of the crystal. E影響, c 4. The Fermi surface of a metal: (a) is responsible for many of the transport properties of the metal, (b) depends on the nature of the chemical bonds, (c) is always a sphere, (d) can involve mixing of electron orbitals. ✓ 5. The conductivity of a material () increases with the mobility of its carriers, (b) increases with the density of carriers, (C) it is inversely proportional to the energy gap. cogu changes with temperature. 6. BID Plasmons: (a) They are an important characteristic of the Sommerfeld electron gas model. (b) Plasmons occur spontaneously in metals. (c) They are related to charge density oscillations. (d) The Plasmon energy is typically of the order of 10 eV. The Fermi energy Ef in intrinsic semiconductors 8) is usually close to y E, at OK (b) it ACiD. can increase or decrease with temperature depending on the ratio of hole and electron effective masses, (c) it represents the point at which the probability of occupation is 12, even though there may not been any states with that energy, (d) its value relative to the electronic bands must remain unaffected in the presence of defects or interfaces.

經濟學 第二章 The Economic Problem 主要想請教第十九題的c和d 僅先致謝沈

malaria cases on the y-axis. On your graph, (1) Draw a marginal cost curve and a marginal benefit curve that are consistent with Bruno Moonen's opinion. (ii) Identify the quantity of malaria eradicated that achieves allocative efficiency. 1 ? Gains from Trade Use the following data to work Problems 18 and 19. Fadi can produce 10 baklavas (a Turkish pastry) or 250 bars of chocolate an hour. Hania can produce 30 baklavas or 90 bars of chocolate an hour. 18. a. Calculate Fadi's opportunity cost of a baklava and Hania's opportunity cost of a baklava. b. If each spends 30 minutes of each hour baking baklavas and 30 minutes producing chocolate, how many baklavas and chocolate bars does each produce? c. Who has a comparative advantage in produc- ing (1) baklavas and (ii) chocolate bars? 19. a. Draw a graph of Fadi's PPF and Hania's PPF and show the point at which each produces when they spend 30 minutes of each hour producing baklavas and 30 minutes producing chocolate bars. b. On your graph, show what Fadi produces and what Hania produces when they specialize.