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Mathematics Senior High

最後の問題のPを16進数で表した時の整数部分が何桁か分かりません。 答え2枚目です

3. 数列{an}の初項から第n項までの和をS” とする。この数列が az=1. α=30. S=(n-1)(n-3)an+1 (n=1,2,3,...) ...① によって定まるとき. (I) anとSをnを用いて表した式 (II) P=StxSs×StX… XS102 の値の整数部分の桁数、 を求めたい。 下記の[ の中に適する式または値を入れよ。 なお, log 10 2=0.3010. log10 3=0.4771 とする。 「(1) まず, a1, as および Si, Sz. S, の値を Sn=ax+az+..+αと①を用いて求めると. $,== (1) Sz= (2) S3 (3) 03= (4) となる。 次に,n≧4のときを考える。 Sヵ-S-1=α の式に①を代入し、n-3≠0 であるから、 との間の関係式 (5) ]) an+1=( (6) Da an を得る。 ここで②の両辺に( (7) を掛けると ( (5) と同じ) ( (7) と同じ 4x+1=((7)と同じ)((6)と同じ) となる。③より数列{(7) と同じ)((6)と同じ) am)は、そのすべての項が同じ値であ る定数列であることがわかり、その定数の値はαの値を用いると. (8) よって、n≧4のときの と S は、 である。 (9) (10) *** SR= と表される。 (II) ⑨を用いて、 P の値はP= -X| 100 数部分は (12) 桁である。 一方, Pを16進法で表したとき、その整数部分は 桁となる。」 となる。 Pの常用対数の値から、Pの値の整 (13)

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English Senior High

c の答えと解説お願いします。 なるべく早く回答してくださるとありがたいです🙇

Vocabulary A Choose the correct definition for the underlined words. 1. They developed the new car in cooperation with Japanese engineers. ( ) 2. Take care to avoid any trouble on your journey. 3. Many birds are flying overhead. 4. Oh, that man threw trash from his car window! 5. When I read English newspapers, I can read 150 words per minute. a working together b things that are no longer useful above your head d for each e to prevent something from happening B Choose the correct word for each sentence below. 1. The satellite is now in (orbital/ orbit ) around the moon. 2. Can you (measurement / measure) the length between point A and point C? 3. I got a lot of exercise and lost a lot of (weight / weigh). C Fill in the blanks to rephrase the sentences. 1. Don't stand while the bus is still moving. → Don't stand while the bus is still (going ) ( on ). Lesson 5 Space Debris 2. I tried to pick up the old, dusty book, but it broke into parts as soon as I touched it. → I tried to pick up the old, dusty book, but it (Came) ( off ) as soon as I touched it. 3. Firefighters tried to control the fire. → Firefighters tried to (bring) the fire (and) control. 4. We continued to get information about the changes in the weather. - We ( ) ( ) of the changes in the weather. 5. They always prevent us from doing things. They always ( ) ( ) ( ) way of us doing things. Tips debris debris は「(破壊されたものの) 破片がれき」という意味である。 trash, garbage, fubbish などは 「ごみ」 を表す語で, trash と garbage はアメリカ英語, rubbish はイギ リス英語である。 一方, waste は何かを作った際に残った 「廃棄物」などを指す。 では、 litter はどのようなごみを意味する語だろうか。

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English Senior High

お願いします

1 Today, Taylor Swift is one of the most popular singers in the world, and is also al cover model for fashion magazines. But she was not always so popular. 2 Taylor Swift began singing country music in Pennsylvania when she was eleven. Country music is an older form of music in the USA that is usually enjoyed by 5 adults. Maybe this is why other kids at her school thought she was strange for stopped calling her. singing country music. Over time, these friends 3 One day, she invited many of her friends to go to the shopping center, but all of them said they were busy. So, Taylor went with her mother. When they got there, they saw all the girls shopping together without Taylor. Soon after that, Taylor 10 began eating lunch at school alone. (1): 4 Taylor asked her parents to take her to *Nashville, a city in Tennessee where many country singers and musicians worked. Her parents decided to move there to help her make her dream come true. Taylor's parents were right to believe she could succeed. At age fourteen, she got a contract with RCA Records, a major music 15 company. 5 RCA wanted Taylor to sing other people's songs until she was an adult. Taylor “ did not like this. She wanted to write and sing her own songs about her life and the boys she dated. The record company did not think older country fans would want to hear (3)a teenage girl talk about her life. 6 Taylor left RCA and joined a smaller record company that released her records. Her music became very popular with teenagers as well as older country music fans. Soon, Taylor was considered a major pop star, and young people who did not normally listen to country loved her music too. 5 7 One day she returned to Pennsylvania to do a concert. Girls from her old school came to the concert and were excited to see her. They treated her like a star, and seemed to have forgotten that they had stopped talking to her in junior high school. 20 Taylor realized her life had changed. (4) * Nashville + VIEN

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English Junior High

英検対策の問題です。中1なのですか分からないとこばっかりで…。解説も出来れば、出来ればでいいのでお願いします🙇‍♀️⤵️

次のEメールの内容に関して (28) から (30) までの質問に対する答えとして最 582 SA 4[B] [も適切なものを 1,2,3,4の中から一つ選び、その番号のマークをぬりつぶしな さい。 From: Lynn Mills To: Cathy Leonard Date: June 28, 2011 18:39 Subject: Changing the schedule Dear Cathy, How are you? I just checked my schedule for next month. There is a problem. I asked you to babysit* Luke and Kevin on July 16th, but my meeting is on Saturday, July 23rd. Can you come that day instead? The time is the same. I'll leave the house at ten in the morning and be home by four. I also wanted to ask you about lunch. Could you make lunch for the boys again? They really loved the spaghetti you made for them last time. If you don't have time to cook, I can leave some sandwiches for you and the boys. If there's something you need for lunch, I'll go shopping for it on Friday. Please e-mail me soon about the new date. I hope it's OK for you. You're Luke and Kevin's favorite babysitter. Thanks, Lynn Mills From: Cathy Leonard To: Lynn Mills Date: June 28, 2011 20:12 Subject: No problem Dear Mrs. Mills, Thank you for your e-mail. I don't have any plans on the 23rd, so I can change the date for babysitting. My grandparents will visit us on the weekend of the 16th. I'm glad because now I'll have more time to spend with them. About lunch, I would like to make pizza and salad this time. I hope Luke and Kevin can help me with the cooking. I think it'll be fun. I'm looking forward to playing with the boys again. Say hello to them! Nee you next month, Cathy Babysit: 子守りをする (28) What will Mrs. Mills do on July 23rd? 1 Go to a meeting. 2 Go shopping. 3 Take a trip. 4 Have a cooking lesson. (29) Why is Cathy glad? 1 She will be able to work on both weekends. 2 She will have more time to see her grandparents. 3 She won't need to wake up early. 4 She won't have to make lunch. (30) What does Cathy say about lunch? 1 She wants Mrs. Mills to leave some money. 2 She will make Luke and Kevin's favorite food. 3 She thinks it will be fun to cook with Luke and Kevin. 4 She wants to take Mrs. Mills to a restaurant. 21年度第1回

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