想問第二題要怎麼寫 答案是216 圖二是我第一題的證明 不知道對不對

treft ix3 X3 FM 45 2 (1)已知實數a,b,k滿足。<b且,試說明不等式A+B<(a-ki) + (b+k? 必定成立。(3分) (2)四個非負實數a,b,c,d均不大於10,且a+b+c+d=24,請利用(1)的結果 十 求出a+b+c+d的最大值。(3分) \\\ (3)若全班50人的單字小考平均成績為93 分,最低可為0分,最高可為100分, 則標準差最大可能的值為、M,試求M之值。(6分) Ź (x;-ur)? 其中以為算術平均數 C 24 Johories 2 ¿xi-nus so > O= = n n Bihoso M=4 中: B : ' " atb² <a za peth 467 - ppt? If a =b, a take the both? = 2a7f7a? th? If arb, az aktp 6 kb the = alth &fe(b-a) + f²3a7b² a 76 77 d ² (ca-hitchath" trc-Art bra b-a7 # 9) (el 2 2 2 atute + d²Max 细 44446

物理求解答

Find the following values for both correlated and uncorrelated sounds: Correlated Uncorrelated a) 80 dB + 80 dB b) 80 dB + 78 dB c) 80 dB + 76 dB d) 80 dB + 74 dB e) 80 dB + 72 dB f) 80 dB + 70 dB

請問第17題

第 16 至20 題為題組 The fruits and vegetables we eat often come in distinctive colors. The rich colors, 16 are not there only to attract attention. They perform another important function for the plants. Research shows that the substances 17 these colors actually protect plants from chemical damage. The colors come mainly from chemicals known as antioxidants. Plants make antioxidants to protect themselves from the sun's ultraviolet (UV) light, 18 may cause harmful elements to form within the plant cells. When we eat colorful fruits and vegetables, the coloring chemicals protect us, too. Typically, an intensely colored plant has 19 of these protective chemicals than a paler one does. Research on how chemicals in blueberries affect brain function even suggests that these chemicals may help our own brains work more 20 In other words, eating richly colored fruits and vegetables makes us both healthier and smarter. 16. (A) almost (B) rarely (C) however (D) relatively 17. (A) capable of (B) different from (C) inferior to (D) responsible for

請問39的D選項哪裡錯 在左附圖的文章中 最後一行最後一句有提到D選項 再請問hold back on在D選項是指堅持嗎 還是有其他意思 謝謝

合題答對者,得2分。 第36至39題為題組 & Thi race to 9-673 +3 Life is all about the choices we make, and they affect everything we do and feel. Kids reporter sad?” of the reseai offici New lack 4 || or SOT daydream about the coolest toys, and parents seek out the best schools for their children. Some people want the tastiest food, while others desire the biggest return on their investments Before we make any final decisions, we are given a lot of choices to sort through? Most of us feel that the more choices we have, the happier we'll be, as we'll be better able to determine which is best for us. At least, that's what we used to think. Research now shows us that there is such a thing as having too many choices, and it's actually making us miserable.' In fact, an excess of choices can lead to dissatisfaction, depression, anxiety, self-blame, and 'fegret. This is because it paralyzes us and forces us to make decisions that go against our best interest. What's more, it results in a huge waste of time. American psychologist Barry Schwartz lays this all out in his book, The Paradox of Choice. He sheds light on the process by which we become less satisfied, which is the cost of having too many options. First, once we've made our pick, we imagine how we could have done better. This then nags at us, making us regret our imperfect decision Soon, we convince ourselves that the discarded options or even imaginary alternatives would have been better than what we settled on, which causes expectations to rise. We're not completely satisfied with the outcome of our decision, even if it's a good one. In the end, we are no longer able to experience pleasant surprises. Fortunately, Schwartz says this can be turned around. But we must first embrace our limitations by 29 Yowering our expectations, being grateful for what we have, and not comparing ourselves to others, vic ti r t ~New 必勝卷第18回試題-4~

第九題可以這樣寫嗎 第二張圖是答案

8. Dorothy collected lots of stamps and cold some ot there and sold / yesterday / lots of stamps / some of them / collected yesterday. 19. Angus cut his finger a little and left blood on his short. cut his finger / a little / and left/ on his shirt / blood

請問為什麼第二題錯了？🙏🏻🌞

高中英文綜合應用(上)-閱讀測驗、文意選填、克漏字、翻譯寫作、作又跟 閱讀測驗實戰練習 題組) The brain, which weighs less than 2.2 pounds, is perhaps the C 03. Wha some responsible fror (A) (B) (C ( Part 1閱讀測驗、文 Part 1 閱讀測驗、文意選填 complicated organ in our bodies. Although scientists have not been able to solve all the mysteries of this amazing organ, they have made for learning, memory, and language. Recent studies indicate that the two progress. They have found that certain parts of the brain are halves of the brain -- the right hemisphere and the left hemisphere play extremely important roles in learning and communicating. The left hemisphere deals with rules, lists of information, and short-term memory. In contrast, the right hemisphere deals with feelings, colors, and term memory. Scientists recognize the importance of both hemispheres in individuals learn languages. They believe that some learners use one half Scientists now relate left and right hemispheres to the way different of their brains more than the other half. Left-brained learners usually long- 04. the learning of all sorts, including language learning. A. repetition to learn. Right-brained learners look for a general picture and concentrate on relating new information to what they already know. They use associations and intuition to learn. Most people fall into one of these types. If teachers know whether their students are left brained or right-brained, they can help them learn better. (D) 01. Which of the following statements is TRUE? (A) Most people are left-brained learners. (B) Scientists have solved all the mysteries of the brain. (C) Language learning takes place only in one hemisphere. (D) Left-brained learners are good at learning grammatical rules. (A) Q2 . Which is the best title of the passage? (A) The Amazing Human Brain (B) A Recent Scientific Discovery (C) Short-Term and Long-term Memory (D) Discoveries in the Two Hemispheres 8

比較利益的問題～求詳解 感恩

John can make 12 pairs of shoes or 2 gallons of milk in half a day, and Tom can only make either 1 pair of shoes or a gallon of milk in half a day. If they both working full time for a day, what's the best way to allocate their works and gets the best results for them?

求解 感覺看不太懂 不過我寫了 我寫的答案是DC 還有下面填空的部分 不知道要怎麼填寫 可以幫我看看嗎？ 謝謝～

) 32. Which of the following mym famous saying “Time is money” ? (A) Money is everything because it can buy time. (B) Fooling around all day is like throwing money away. (C) Making good use of one's time is the best way to make money. (D) Spending our time wisely will make our lives more productive. ) 33. What can be inferred from this passage? (A) Everyone should try to exchange money for time. (B) Time is money but the opposite might not be true. (C) Making money is more valuable than saving time. (D) Don't spend money buying things you don't like. VI. 混合題:11% Here is a debate on “money and love” on a social forum. 1. For couples, love is more important than money. Love is everlasting. Having a companion* to trust and care for is the top priority*. If you love each other, you will both work hard to earn money. But it is love that keeps you together. 2. If you are seeing someone, you need money to take that person to a restaurant and buy him or her gifts. After you settle down, you will need money to buy food, have a house to live in and send your kids to a good school. Therefore, money is on top of everything

根本看不懂啦＼(￣▽￣;)／

Your report should follow these guidelines, although you may choose how you present it: How to Write a Mathematics Report In writing your report, remember that you are writing up a mathematical story and so, like all good stories, it will need a beginning, a middle and an end. More formally, the main components of this writing style are: Introduction, Formulating the Problem, Solving the problem, Discussion of Results, and Conclusion. We will now consider some of the detail in each of these aspects. Introduction This is the beginning of the story. Give a brief explanation of what the problem is about what the goals of the report are and what will be presented. Assume that your reader does not know what the problem is about or how to solve it. Formulating the problem Translate the situation into a maths problem. Explain how you will begin to solve the problem and break it into simpler stages. Discuss any assumptions made. What quantities are variables and which values are fixed? You may use sub-headings if they assist you. Solving the Problem Show any calculations and mathematical reasoning that you use. (Assume that your reader does not know much maths). Do not show the same types of calculations repetitively. Just give one or two examples of a calculation and then put the rest of the results in a table. Use diagrams or graphs if they assist you. Make general remarks about what you observe in your calculation results and, possibly, why. You may want to criticise your work and go on to improve it in the next section. Explain what you will do next and why. Discussion of Results - Evaluate and Verify Summarise your results if necessary and refer to your mathematical reasoning. Justify procedures used. Interpret your results. First, are they reasonable or does something not look right and need further investigation or checking? Is there a decision to be made? Here is where you should present the decision-making process. Evaluate the strengths and limitations of your solutions. Conclusion Summarise your findings. Refer to the problem outlined in the introduction. Make sure that you answer the question that was asked. Make recommendations. No new material should be presented here.

🙏🙏🙏

7. (10 points) SARS incidence The table shows the number of people per day who died from SARS in Singapore at two-week intervals beginning on March 1, 2003. Estimate the number of people who died of SARS in Singapore between March 1 and May 24, 2003, using both left endpoints and right endpoints. Date Date March 1 March 15 March 29 April 12 Deaths per day 0.0079 0.0638 0.1944 0.4435 April 26 May 10 May 24 Deaths per day 0.5620 0.4630 0.2897