学年

質問の種類

数学 中学生

この問題の1のエって、何故か2分の1するのですか? 16に合わせるためのかずあわせですか?

2 次の図1のように, 1目もりが,縦,横ともに 1cm の等しい間隔で線がひかれている方眼 とり,3点A, B, Cを結んで直角三角形をかいたとき, 直角三角形 ABC の内部及び周上に 入試で差がつく応用問題。 最初は難しくても挑戦しよう! 受験難問 要養標準受験応用 受験基本 3 ある点の個数を Nとする。 4 5 1 cm A 図2 A 1 図1 :C 1 cm B! B はるかさんと先生の会話 生:これから, nの値と,直角三角形 ABCの内部及び周上にある点の個数Nの関係について考えましょう。 はるか:直角三角形の面積は長方形の半分だから,点の個数も長方形の半分じゃないですか。 先生:では, n=5のときで確かめてみましょう。 はるか:図2から, n=5のときの直角三角形 ABC は, 縦が4cm, 横が 5cm の長方形を半分にしたもので す。この長方形の内部及び周上にある点の個数は, 5×6で30個ですが, N を数えたところ 16個で、 半分ではありませんでした。どうしてですか。 先生:長方形の点の個数を半分に分けるということは,辺BC上にある点の個数も半分に分けることにな ります。 でも、この場合,辺 BC上にある点は, 点B, 点Cの2個だけですが, この2個ともNに含まれま すね。 はるか:なるほど,辺 BC上にある点の個数がNを求める鍵なんですね。 先生: では, n=6のとき,辺BC上にある点の個数は何個ですか。 はるか: (ア個です。 先生:それでは, nが他の値の場合についても調べてみましょう。 はるか:nが8までの場合について,辺 BC上にある点の個数を書き出したところ。 ませんでした。 先生:nが8より大きい場合を書き出しても, 8までと同じ規則性で並ぶので,辺BC上にある点の個数は、 全部で(イ)通りでいいんですよ。 はるか:そうすると、 nがどんな値の場合でも、辺 BC上にある点の個数がいくつになるかわかりますね。 先生:その通りです。 辺BC上にある点の個数がわかれば, Nを求めることができます。 n=8のときは、 辺 BC上にある点は(ウ) (イ)通りしか出てき ぐ 個で, Nは エ) 個になります。 (1) 会話中のア) (に入る数をそれぞれ書け。 12) 辺BC上にある点の個数が最も多くなる場合のnとNの関係について考える。このとき、 Nを,nを使った式で表せ。 (3)辺 BC上にある点の個数が最も少なくなる場合の nとNの関係について考える。 このと き, N=186 であるようなnの値を求めよ。 数学

未解決 回答数: 1
TOEIC・英語 大学生・専門学校生・社会人

TOEIC正解、よろしくお願い致します!

Questions 5-7 refer to the following letter. a new member to the club To welcome confirm To | continued membership Mr. Leonardo Harper 571-45 Heiligenstàdter Street Vienna 1190 の) December 15 Dear Mr. Harper, Thank you for your continued support of the North Vienna Concert Hall We are writing to confirm receipt on December 14 of your North Vienna Club membership renewal payment for next year. Alnterviews with musicians To celebrate our 30 year anniversary, we are happy to announce some new special benefits for club members. Starting next year, club members can receive a 10% discount on any concert held during the first three months of the year. Call our ticket office at 1-5123098 and use the promotional code CZ1713 when you order your tickets. Please note that discounts only apply to pre-orders placed during this special period. IC) Commentaries on 0 The concert schedule performances As always, members will receive our monthly magazine, North Vienna Club, which features concert reviews and interviews with various artists and musicians, together with news and schedules of all of the events at the concert hall. Next month's issue will feature a six-page interview with the world famous conductor Franz Minsky. Once again, we thank you for being a North Vienna Club member and for supporting arts and music in our community. Sincerely, Roy Pophins Roy Hopkins Director North Vienna Concert Hall の の)

回答募集中 回答数: 0
TOEIC・英語 大学生・専門学校生・社会人

わかる人いたら教えてください

¥ Samuel Pepys is the earliest diary- keeper that is famous today. for it gives personal insight into London's Great Plague and the Great Fire. Pepys took diary writing from the realm of business to the individual. His diary is being published on the Internet, and it is interesting to note that there has beena new entry every day since Anne Frars 1929-194。 n January of 2003. It will continue over the course of several years to come. Reading his diary is fascinating. and it makes his life all the more real to us. 63 Today's electronic version of the diary, the web READING PASSAGE log, or “blog," has once again stretched the diary to fopic sentences and supporting sentences of each paragraph be much more than a personal account of the dav's events. There are blogs to document recipes, traveling. ロ movies, independent news, product announcements, allowance." It refers to a book for fragmentary writings by date and is photos, and anything else that needs to be recorded over time. Search engines like Technorati.com have 会 the six volumes of Samuel Pepys diary manuscript 35 been created to keep track of the more than 112 million blogs that are $ diary is a good form of self-study. 日(In America, from the 1940s through the 1980s! a diary was thought of currently public. In its newest incarnation, the diary has become more popular mostly as a way to privately express one's deepest thoughts while keeping notations about the day, In those times, pnd even continuing on today, writin。 in a diary was like writing to a special friend. Many times, movies would show than ever. COMPREHENSION QUESTIONS 9 teenage girl beginning to write in her diary while she said aloud, "Dear diary Decide if each statement is true [T] or false [F]. If it is false, write the sentence correctly. What followed was a synopsis of the day, usually filled with emotion. Those private reflections may have historical significance long after the 1.[]The word “diary" means a collection of stories written every ロ day. author's death. A diary kept by a young German Jewish girl by the name of Anne 2.[] Diary writing in movies illustrates how similar it is to writing to a special friend. Frank provides us with invaluable lessons about history, for she documented Anne kept a record of her private events and thoughts in her diary after she moved to Germany. 15 her experiences while she hid from the Nazis during their occupation of the Netherlands in World War II. Her diary became one of the world's most widely 4.[]Pepys was one of the first diary writers to include his own personal observations of historical events. read books and is the basis for many films. Samuel Pepys, who lived during the 17th century, is the earliest diary-keeper that is famous today. His diary is also an important documentation of history, ロ 5.[、]Today's diaries on the web are changing their characteristic of being secretive. 12

回答募集中 回答数: 0