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数学 高校生

数学Iの式の計算の問題で(2)の問題の100=6・16+4の計算がありますがなぜこの式になる意味が分かりません。 わかる方は回答よろしくお願いします。

52 52 基 例題 本 26 分数と循環小数 (1)循環小数 1.5, 0.63 をそれぞれ分数で表せ。 30 (2) を小数で表したとき,小数第100位の数字を求めよ。 7 CHART GUIDE (1)例えば,循環小数x=0.1 は, 循環部分が1桁であるから, 右のように, 10xxとすると循環部分が消える。 これと同様 に考える。 循環小数(ry 循環部分 (繰り返される部分)に注目 00 10x=1.111... x=0.111 ... 9x=1 40平 平方根とは するとり 平方根という FORT & D る。ただけ 解答 (1) x=1.5 とおくと x=1.555・・・ 両辺を10倍して 10x=15.555••• よって 10x-x=14 14 ゆえに x=. 9 y=0.63 とおくと y=0.6363... 両辺を100倍して100y=63.6363・・・ よって 100y-y=63 10x=15.555… x= 1.555・・・ 9x=14 100y=63.6363... 循環部分が1桁のとき 両辺を10(10) 循環部分が2桁のとき 両辺を100(10)倍。 y= 0.6363... 99y=63 63 7 ゆえに y= 99 11 30 (2) =4.285714=4.285714 7 小数第1位から 285714の6個の数字の並びが繰り返される。 4.285714... 100=6・16+4 であるから, 小数第100位の数字は 285714の4番目 の数字で 7 参考 循環小数を分数で表すには,上の解答 (1) の方法以外に、 7) 30 28 20 14 56 mm-0.i, 1 999 9 99 -=0.0101=0.0i. =0.001001=0.001 40 33 35 上に であることを利用して,次のように求める方法もある。 50 49 10 3838822-880 1.5=1+5×0.1=1+5×11=104される。 0_15=1+5x0.i=1+5x ずれかで表される。 小 0.63=63×0.01=63× 「いう。また、有 TRAINING 26 2 1 7 有理数である。 -= 99 Ⅱ 実数と のような数を |-5|=5 循環小数 0.2, 1.21, 0.13 をそれぞれ分数で表せ。ピース (1) 5 (2) (ア) (イ) 37 26 を小数で表したとき, 小数第 200位の数字を求めよ。 30

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英語 高校生

1枚目の写真のTask1を参考に Task2でメールの返信を考える問題です🙇‍♀️ 2枚目に私が書いたものがあるので文法や単語ミスがないか添削してほしいです 3枚目に評価する時に先生がよく見てるところを貼ってるので参考にしていただけると幸いです すみませんがよろしくお願いし... 続きを読む

Task 1 Read the ad below. Underline the qualities that Jenna is looking for in a roommate. NEED A RESPONSIBLE ROOMMATE I'm a 20-year old female history student at CUNY. I'm looking for a tidy and friendly roommate to share a two-bedroom apartment near the university. The apartment has furniture, Internet, and cable TV. We'll share a bathroom and a living room. The available bedroom is large. The rent is $300 a month. The perfect roommate would also be a student. I have a small dog, so you have to like dogs. I also can't take any other pets. If you are a smoker, you MUST smoke on the balcony. I get along well with creative and knowledgeable people. I'm pretty talkative and would be happy to live with a similar person. Please send me an e-mail (jennabusybee@cunyemail.edu) and tell me about yourself. I would like to hear about your studies, personality, and why you would make a good roommate. Jenna Task 2 (00 Write an e-mail to Jenna (80-120 words). Tell her about yourself. The phrases below may help. responsible tidy knowageable pay the rent on time/clean up after myself all the time / know a lot of things / like to have a good conversation/your own description カンバセイション Creative, friendly TITELK

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TOEIC・英語 大学生・専門学校生・社会人

動詞の使い分けがわからないです😭

EXERCISE 20➤Looking at grammar. (Chart 5-6) Choose the correct completions. 1. The United States has have a population of around 325 million. an established and respected newspaper. a branch of mathematics. (2.) The New York Times: C:C/DC Caree 3. Statistics is/are 4. The statistics in that report on oil production :C:MKEKECRETKEY) incorrect.* 5. Fifty minutes is are the maximum length of time for the test. 6. Rabies (is) are an infectious and often fatal disease. The blind wants / want us to treat them the same way we treat everyone else. talking with people 8. French is are somewhat similar to Spanish, isn't it / aren't they? The French is are proud, independent people. 10. Does/Do the police have training in mental health issues? 1. Thirty dollars is an unreasonable price for that T-shirt. 12. Four hours of skiing provides / provide plenty of exercise. EXERCISE 21 ▸ Game. are (Chart 5-6) Work in teams. Choose the correct words (or numbers). Then complete the sentences with is or are. 1. The Scots /The Irish The English and Cambridge. 2. Statistics/Linguistics / Physics 3. Diabetes/Measles / Mumps 4. English / French / Afrikaans 5. People from Canada. called are famous for educational institutions like Oxford the study of the structure and nature of language. a blood-sugar illness. the official language of Namibia. Canadas/Canadians / Canadese. covered by water, but drinkable. 6. Approximately 60% / 70% / 80% of the earth only 1% / 10% / 20% of the earth's water 7. 312 x .5+ 100 227/275/256. 8. The United Arab Emirates/The Netherlands/The Philippines Hemisphere (i.e., north of the equator). in the Northern 9. Fish/Whales / Cattle not mammals. 10. Five hundred thousand + five hundred thousand ten hundred / one million / one billion. 11. Macy's/Harrods / Hudson's Bay a department store that began in London. *Statistics is singular when it refers to a field of study (e.g., Statistics is an interesting field of study.). When it refers to particular numbers, it is used as a count noun: singular one statistic (no final -s); plural = two statistics. For example, This

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英語 高校生

この選択であっているのかそしてなぜほかの答えではダメなのか教えていただきたいです。

Education Text Completion Select the best answer to complete the text. Then choose the letter (A), (B), (C), or (D). Questions 9-12 refer to the following web page. Part 5 Incomplete Sentences Select the best answer to complete the sentence. Then choose the letter (A), (B), (C), or (D). 1. Before ------- Japan, all international students must get a student visa. (A) enter (B) entering (C) to enter (D) have entered ------- in psychology in university, but now he is an artist. 2. He A majored (A) hers (B) studied (B) she 3. Mr. Toda helped Cathy describe 4. It has been 15 years since I graduated (A) on (B) in 5. Library accounts are automatically created, so no ------- LVU Campus Tours The students of Las Vegas University are at the heart of the LVU experience, 9. tour our campus, meet LVU students, and have them guide you on a campus tour. You can enjoy a candid conversation with 10. students, ask them about classes, housing, Las Vegas, online student support, and more. 11. Doing this will hopefully give you the best idea of what LVU life would be like for you. The two-hour campus tour allows you to experience firsthand everything you need to know. Click here for your guided tour. (C) researched (D) took research plan. (C) her (D) herself ------- university. (C) at (D) from registration is 9. (A) so 10. (A) now (B) then (B) modern (C) initials (D) initialed 12. (C) also (C) latest (D) and (D) current necessary. (A) initially (B) initial 6. I'm happy to have this ------- to study with such great professors. (A) notice (B) benefit (C) factor 7. Statistics is a ------- class for second-year students. (A) require (B) required (C) requiring 8. The geologists plan to study the soil from the mountains Dopportunity (D) requires ------- Canberra. 11. A We will match you with a guide based on your interests and goals. (B) Feel free to ask about other universities found in the area. (C) Take the time to learn more about the city of Las Vegas online. (D) Please let us know the kind of person you were in high school. 12. (A) arrange (B) to arrange Carranging (D) arrangement (A) out (B) next (C) onto (D) around

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