答え自体はあってますが、赤本の回答を見る限りこれでは不十分らしいです。なぜ不十分なのですか？

(3) 原点0からC に引いた2本の接線の傾きがともに整数になる確率をえ 3点0, A, Bは同一直線上にないものとし, 3点0, D, Eも同一直線上 座標平面上の点O(0, 0), A(aj, az), B(b,, ba), C(bg, -6,)を考える。き よ。 (2) C と 軸とで囲まれた領 めよ。 回日 3 らに, 0冬0,ミT, 0<っニェに対し, D(a, cos , - as sin 6,, aj sin O, + ag Cos@,) E(b, cos @, - b, sin @g, b, sin @, + b,2 Cos @,) とおく。 (1) |OA| = |OD を示せ。 (2) OA-0d = 0 かつOA:OB= 20D·Oキ0であるとする。,==あ るとき,6。を求めよ。 (3) △OAB の外接円の半径をr, とし; △ODE の外接円の半径をr。とする。 また, △OAB の面積を Sとする。 AB: DE =2:3であるとき, AODE の面積を, S, r,, T2 で表せ。 (補足説明) にないものとする。

下線部の訳し方を教えてください😭

F5 and r 1 Della's Decision decid she That was all. stree ONE dollar and eighty-seven cents. And sixty cents of it was in one cent coins. Those coine were saved one by one by neggtiating with the grocery. and vegetable storekeepers and the butchers for bargains. Three times Della counted it. One"dollar and éighty- She 残する。 hai 、肉産 をya off 5 seven cents. Though the next day would be Christmas. she could not afford to buy a present for her husband |Jim」 She was so sad that she began to cry. After a while, Della finished her cry and put some 10 sa ar powder on her cheeks. She stood by the window and looked out disappointedly. Christmas Day, and she had only $1.87 with which to buy Jim a present. Now, there were two possessions of this young couple, of which they both were gteatly proud. One was Jim's 10 Tomorrow would be 15 gold watch that grandfather's. The other was Della's hair. Now Della's beautiful hair fell about her, waving and shining like a brown waterfall. It reached below her knee had been his father's and his Della デラ(人名) 3. grocery 食料品店 4. butcher 肉屋. bargain 安売りの 品 8. Jim ジム(人名) 6

問2と問7教えてください

A son introduces his girlfriend to his mother and father at his parents' home. Greg: Mom, Dad, this is Jennifer Nicholas. Jennifer:Hello. Father:Hello, Jennifer. Jennifer:So you're Greg's father. Greg has told me so much about you. He is so lucky to have such a wonderful father, and I'm certain your wife also ア she has a wonderful husband. Father: Well, thank you very much, Jennifer. Jennifer: What a marvelous house you have here, Mrs. Brady. I amnot surprised Greg has such good イ Mother:Thank you very much, Jennifer. I try to make it comfortable. Jennifer: This is a lovely picture here on the wall. Are these all your children? Father: That's right. Jennifer: Your other two sons seem nice, but Greg is really special. Mother:Did both of you enjoy skydiving this afternoon? Jennifer: Oh, at first I was terrified, but when you're with someone as strong and capable as Greg. all my fears just fade ウ Greg:I think if we're going to that movie, we should go now. Father: What エ | are you going to see? Greg:Oh, they've got a great science fiction movie playing at the theater. Jennifer:It's really exciting. I already saw it. Greg:Oh, well, we can go see something else. Jennifer: No, Greg. You want to see that movie, and that's what we'll see. Greg:Oh, it's not that important, Jennifer. Jennifer: I'm happy to see it again with you. Greg:Thank you, Jennifer. That is so nice of you. Jennifer: It was a オ to meet you, Mr. and Mrs. Brady. Mother: You too, Jennifer. Father: Goodbye, Jennifer. Mother:Have funl Greg:Thanks. Good night. A~Dのふたからィつ選べ 開1 25 空所 を満セすのに最え商加なものを ア

(1)の答えが3、(2)の答えが-1らしいのですが、解き方が分かりません。解き方を教えてください!

|3 右の図のような AD=AE=1, 'AB=V3 の直方体 ABCD-EFGH において, 次の内積を求めよ。 (1) AB-AC (2) AD.GE A, N3、 H B E G F

並び替えお願いします

3 Grammar Check Jn Unscramble the following words and complete the sentencesP tnoTois tto mul l amoo1 ni ho atrigil muT 1. [Japan, playing, been, important, an, role, has] in dealing with environmental 0 10t n problems. 2.co qe gylod onittorealbisgot in dealing with environmental 9.unethical agnitoa problems. ( 2cmue 2 2nbb あsbann 191sw to tmuoms srit diw oltisd srt,,la0, a Wednesday. 2. The next meeting [ Tuesday, be, either, or, on, will, held ] Wednesday. The next meeting 3. Polar bears are an [ endangered, of, example, species, an ]. Polar bears are an

なぜ下線部22のput asideの意味がbの答えになるのですか？マーカーで引いているところの訳も教えて欲しいです

world, a little more realistic, less of a dreamer, and she hoped more of a personality. In the interval she had put aside an earlier Americanized dream of a husband, a home, a garden, a dog. and children, and there had grown in its place a desire for more schooling in preparation for a career of service to those less fortunate than herself. Boys put her down as a (snob and a bookworm Well, let them. She /was independent. She was also frank

なぜbeenがいるのか教えてください🙇‍♀️

A ミスに注意! 下線部に誤りがあるものを選び, 訂正しなさい。 Cの) has bean Her husband a,is , dead , for five years. 完了形の 15

答えあったらください

Date /32 13 LESSON D Choose the best answer to fill in the blanks. (各1点) )audience at the movie theater. 3 many (1) There was ( much Dalarge 2 large ) fire. 2 Always keep a bucket of water handy, ( 1unless ④ ready on 3 to prepare (2 in case of ) has become a bestselle, 3 My teacher recommended several books to the class, ( 2 which 4 one of which 3 one of that D that (4) As I had a bad cold, I was made ( 1 take ) the bitter medicine against my will. の taking 3 be taken (千葉工す。 2 to take (5) Someone hit me on ( ) head. 3 the の his (四天王寺国際仏町 Da (2 an (6) The picture is said ( O having been drawn ) just before he died. 2 to be drawn 3 to have been drawn の to have drawn (7) I am sure ) coming to the party. O not his 2 his not 3 of his not ④ of not his (松」 (8) The girl ( ) sweet voice John loves is a good singer. Owho 2what 3 which のwhose (大阪に (9) It is only 6 o'clock in the morning. She ( ) at this time. O may still asleep 3 may be sleeping 2 might have been sleeping O might still asleep (福 00 To begin ( ), you must buy an admission ticket. D at 2 on 3 with ④ from (11) This restaurant is ( ) nicer than the one I visited last week. 1 more 2 too 3 as の far 12) ) that such a thing would happen to all of the guests staying at the hotC。 O Little did I dream ② Little dream did I 3 Little I did dream O Little dream I did 12) Some of the milk turned sour before it reached the market and( 1 must throw ) away. 2 have to be thrown 3 had to throw O had to be thrown 50

なんでhaveがつくのか

bave been thrown Those booksbas. そのプリントは誤って捨てられたのかもしれない。 de thronete may away by mistake. The handout Ihay. 年11々ワーが現在 建設中だ。

Check1と2の訳を教えて欲しいです！

現在し過去」分詞は,名詞の前後に置かれて「~している…, ~された…」 の意味を表します。 分詞が単独で名 飾するときは名詞の前に,他の語句を伴うときは名詞の後に置きます。 Check 1 空所に入る適語を下の語群から選んで補いましょう。 Choose the correct word and fill in each blank. 1. Nancy is a singer ( Towring ) around Asian countries now. 2. We received many thank-you cards ( writen , in English. 3. The bus ( parked) at the gate will take you around London. [parked, touring, written] Study Point 2 p sba S+V+O+C(分詞) 1. あなたは決勝戦に備えるべきで 1. You have to yourself す。 for the final contest. 2. レイチェルは,大切なお客のた めに部屋がすでに掃除されてい るのに気づきました。 2. Rachel oune the room alrea dleaned for her important guests. 現在分詞や過去分詞がS+V(find, keep, leave, want など) +○+CのCの働きをし, 現在分詞の場合は (分詞)の間には「○が~している」, 過去分詞の場合は 「○が~される」 の関係があります。 )内の動詞を適切な形にしましょう。 Change the verb in parentheses to make the correct form. derato。 1. Rachel was able to make herself funderstand) in Japanese at the party. 2. They kept the party guests (wait) for over an hour. 3. We want Japan's famous places (visit) by many foreigners. V団 ESSON 12