求解這兩題🙏🏻

【例13】 設 x ∈R,試解方程式 [3x]+2[x]-5=0. 5 # 07;5<3x<6.35 <x<2 10<x<1 (3x)+2(x) = 5 2 3 5353x24 3 44 5 > 457x<5 183252 Sol11 【例14】設x∈R,試解方程式x²-x-[x]=0 n (3-2-1 €2 2 x= x < x < x = x+1. 54= x² = 2x50 Ly = x² = 2 x +1 70 LY 練習 23<3 0<X<\ or \<x<? 470 。 2 4<0 (x)=0. f of 470 x=00X (10) <0 @ 1= x²-x x²-x-1=C 21X-2 [2]=22 Salz: floor function 12~3 1.設x∈Z且滿足x=4,則滿足條件的x共有幾個?

第二個為什麼不能選what 要選that

en Ronald McL The Marshmallow Challenge is a popular team-building exercise. In this challenge, groups must work together to build the tallest structure that can support the weight of one marshmallow. 1. only dry spaghetti, tape, string, a marshmallow, and 18 minutes to finish the challenge, the teams must work quickly. The Marshmallow Challenge has been conducted with architects, lawyers, managers, and children. In one study, the group 2. built the highest structure was architects. However, children performed better than the other adult teams. Why did children do so well? First, they worked quickly (with m had been given to them. The adults spent more time planning, so they had less time to adjust their designs. Second, children collaborated to understand 4. to build the tallest structure. Adults wasted time 5. 5. a group leader.joyed mol of lasag In order to solve problems, we must Marshmallow Challenge helps people do that. collaborate and try new ideas. The

求這三題的過程 謝謝！

L000 In exercises 37-39, determine values of a and b that make the given function continuous. zeros at f(x) #C Some nu Theorer 2 sin x if x < 0 unction continu- X nction should be 37. f(x)= a if x=0 bcosx if x>0 52. For fo Does t

請問第24題為什麼用when🥺🥺🙏🙏

Ľ 23 control by using cruel discipline. They may think that 24 in fact they aren't. Other people will try to keep their pet punishment and intimidation are the best ways to solve a problem d people abuse animals because they are careless. For example, someoné might forget to give their cat water for a few days or leave their dog in a car on a hot day with the windows rolled up. Some people 25 they can handle. By doing so, the hurt animals instead of helping them by taking in more pets animals end up living in a place that's cramped, dirty and unhealthy. Nearly all of these people can learn to understand (F) Keep 26% they are being cruel to animals through basic and proper education and become a better keeper. OK The next biggest group of animal abusers does it on purpose, but only for a short period of time. For example, a group of kids may throw rocks at a nest of baby birds they happen to see, or hurt a 22 Beat 28 everyone else is doing. in their neighborhood. These people are usually young, and they aren't thinking. Mostly, they do so out of the peer pressure or the need to impress each other. They just go along with This last group of abusers is the worst. These are people who intentionally hurt animals because it makes them feel powerful. By doing so, they think they control the animals. Others enjoy pain and violence. All of the people in the last group suffer from serious, psychological problems y not go away on their own. They often need the help of licensed professionals-like a psychologist. Without help, their psychological problems can that will probably HC 30 them for their whole lives. to that stray (G) what simply 第4頁 共10頁 (H) haunt when (I) with 29 (E) under (J) than 實際与前述不同

英文問題 may not be什麼意思 感覺題目詳解給錯了

第 48 至 51 題為題組 Many of us have probably experienced déjà vu at least a few times in our life. Its meaning comes from the phrase "already seen" in French, and occurs when we feel that a person, place, or thing is familiar to us without actually having experienced them before. This strange phenomenon happens to as much as 70 percent of the population, but a higher number of 15 to 25 year olds experience it than any other age group. Maybe you just travelled to a new foreign country, and it just felt very familiar to you. Yes, you are feeling déjà vu; however, you know you haven't been there before. While different people experience déjà vu in different ways, it is still a pretty mysterious phenomenon, and researchers are putting the pieces together. Based on some studies, déjà vu is just a part of having a healthy memory checking system, and people who experience déjà vu more often are less likely to forget the details of important events. In fact, the results of the study don't look too promising in terms of mental health for people who never experience déjà vu. Scientists believe déjà vu is created by a neurological anomaly related to an improper electrical discharge in the brain. In short, it's not a mystical prophecy or out-of-body experience, but just your brain playing a trick on you; that is, these scientists dismiss it as just a glitch in the matrix. A few people are just terrified when it happens, but others feel euphoric about it. On average, most people just find it to be a perplexing sensation, neither pleasant nor threatening. Since déjà vu occurs in individuals with and without a medical condition, there is much speculation as to how and why it happens. Several psychoanalysts attribute deja vu to simple fantasy or wish fulfillment, while some psychiatrists ascribe it to a mismatching in the brain that causes it to mistake the present for the past. Many parapsychologists believe it is related to a past-life experience. Obviously, there is more investigation and researches to be done. So, does this article seem very familiar to you? 48. Which of the following CAN'T be described as a déjà vu experience based on this passage? (A) You keep buying similar style of clothing and you don't know why. (B) You feel you've been to a place when actually it's your first time there. (C) Someone looks familiar to you though you have never seen him before. (D) You just met a new friend whom you think you must have met somewhere. 49. Based on the article, which description about déjà vu is WRONG? (A) It actually is not as harmful to our mental health as we think. (B) Some people who have experienced it may feel a sense of happiness. (C) The word"déjà vu" originates from France, meaning"already seen." (D) Those who never experience it may not be mentally healthier than those who do.

請問大家20題為甚麼不能選c?

In at some time in their lives. There have been very few history of mankind, there being mainly some strict religious groups, 12. to this in the entire who sailed from Europe to America, 13. the first Puritans ji za 14. felt that music should only be used to worship their deity and never for pleasure 15. b Tesalb auoigs Even joyful things, however, have their limits. The best song or dance in the world would become less and less enjoyable if it continued 16. Part of the pleasure in song and dance is 17. it has a beginning and an end. When it becomes too drawn out over a long time and 18. it becomes boring. We become impatient and 19. want to see or hear it. This too is we have come to use the idiom "song and dance" to mean a boring, long excuse or explanation which is of no interest to us. repetitious (B) endlessly (G) how (H) exceptions (C) what (alone of alo suc such as no longer (F) that participate as if Ewho (K) 三、篇章結構 Being left-handed gives me a view of what it is like to be a minority. After all, I'm white

想問第3格要填什麼？

II. 綜合測驗:15% The Marshmallow Challenge is a popular team-building exercise. In this challenge, groups must work together to build the tallest structure that can support the weight of one marshmallow. __ 1.__ only dry spaghetti, tape, string, a marshmallow, and 18 minutes to finish the challenge, the teams must work quickly. The Marshmallow Challenge has been 2. conducted with architects, lawyers, managers, and children. In one study, the group built the highest structure were architects. However, children performed better than the other adult teams. 3. had been Why did children do so well? First, they worked quickly with given to them. The adults spent more time planning, so they had less time to adjust their designs. Second, children collaborated to understand 4. to build the tallest structure. Adults wasted time 5. a group leader. In order to solve problems, we must collaborate and try new ideas. The Marshmallow Challenge helps people do that.

第六題 第二個問題怎麼解

6. Let f(x) = ln(3 – In x). Find the domain of f = (0, ey) and its inverse function f-1(x) = e(3-e“). logg C dx 1 7. Evaluate 1. O

求救第55題 完全看不懂他要我幹嘛

Year slenue Req) = 1932 1958 +1000 q R 9)=-1000q =74 1963 1968 COM If the price in dollars of a stereo system is given by 1000 p(q) + 1000, 1000 ² q where q represents the demand for the product, find the mar- ginal revenue when the demand is 10. 54. Profit Suppose that for the situation in Exercise 53 the cost in dollars of producing a stereo systems is given by C(q) = 0.2q2 + 69 + 50. Find the marginal profit when the demand is 10. 59. Marginal Product of Labor The output y of a manufacturing y process is a function of the size of the labor force n using the function 1990 +1000 1971 1974 = 990 197 197 19 19 1 y = kVn. The marginal product of labor, defined as dy/dn, measures the rate that output increases with the size of the labor force, and is a measure of labor productivity. (a) Show that (c) Using the a cubic f respond the rate and 200 (d) Discus descri part ( the y (e) Exp data calc ful x C(x) = 58. Money 1955-7 dy k dn an (b) How can you tell from your answer to part (a) that as the size of the labor force increases, the marginal product of labor gets smaller? This is a phenomenon known as the law of diminishing returns, discussed more in the next chapter. 56. Profit An analyst has found that a company's costs and rev- enues in dollars for a product are given by x2 C and R(x) 2x 2 5000' respectively, where x is the number of items produced. (a) Find the marginal cost function. (b) Find the marginal revenue function. (c) Using the fact that profit is the difference between revenue and costs, find the marginal profit function. (d) What value of x makes the marginal profit equal O? (e) Find the profit when the marginal profit is 0. (As we shall see in the next chapter, this process is used to find marimum profit.) A wher in bi find year (a) (C) (e) nad since

51最後怎麼算？sec c算出來後 我就看不懂要怎麼弄出c的值了

Value Using the Mean Integrals In Exercises 47-52, find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. 47. f(x) = x3, [0, 3] [3 19 [0, 6] 4' = 48. f(x) = (x, [4,9] 50. f(x) = [1, 3] , 3] 9 - x2 49. y = , r3 - T [15 TT = 51. f(x) = 2 sec? x, 52. f(x) = cos x, 3' 3 4² 4