赤く丸をしたbの問題で解答の方に二階微分した後の式がなぜ(-1/4)(-1/4)(H-27)になるのか分かりません。教えてください🙇‍♀️

QA At time t = 0, a boiled potato is taken from a pot on a stove and left to cool in a kitchen. The internal temperature of the potato is 91 degrees Celsius (°C) at time t = 0, and the internal temperature of the potato is greater than 27°C for all times t > 0. The internal temperature of the potato at time t minutes can be modeled by the function H that satisfies the differential equation dH (H- (H-27), where H(t) is dt measured in degrees Celsius and H(0) = 91. (a) Write an equation for the line tangent to the graph of Hat t = 0. Use this equation to approximate the internal temperature of the potato at time t = 3. (b) Use 2017 APⓇ CALCULUS AB FREE-RESPONSE QUESTIONS (a) dH d²H dt² to determine whether your answer in part (a) is an underestimate or an overestimate of the internal temperature of the potato at time t = 3. (c) For t < 10, an alternate model for the internal temperature of the potato at time 7 minutes is the function -= − (G - 27)²/3, where G(t) is measured in degrees Celsius dG G that satisfies the differential equation dt and G(0) = 91. Find an expression for G(t). Based on this model, what is the internal temperature of the potato at time t = 3 ? 564 at (21-27) - == 2-16 To = - = (H(3)-27) 4 -64 = HB)-27 -37 = H (3) (b) _d²fi © 2017 The College Board. Visit the College Board on the Web: www.collegeboard.org. GO ON TO THE NEXT P

この答え持ってらっしゃる方いらっしゃいませんか。

Review for Lesson 1 A: Check Read the passage and answer the questions below. What kind of qualities do you think a "leader" has? You might imagine a strong, confident person [gives directions to other people. However, such a one-way style of leadership has become less common. These days, thanks to the Internet, you can easily voice your opinions. This has resulted in more cooperative decision-making. G [3]. These skills focus on empowering all members, improving communication, and enhancing teamwork. Successful 21st century leaders bring people together by respecting all members' opinions. They lead through collaboration, not by control. Today, the world is changing at an incredible pace. To tackle ongoing global challenges, it is helpful to learn about the importance of leadership. By developing leadership skills, you can improve your community, your school life, and yourself. Hind say (1) Fill in the blank by choosing from the words below. [ which who / whom / what ] (2) What does 2 refer to? Answer in Japanese. (3) Put the words below in the correct order to fill in blank 3. [ to use a cooperative / "soft skills" / team / modern leaders / build 1. (4) Translate 4 into Japanese. (5) According to the passage, which of the following sentences is true? a) Soft skills are becoming popular among one-way style leaders. b) Today's leaders use soft skills to encourage others to communicate. c) The world is changing so hat soft skills are not useful. (6) If you develop leadership skills, what can you do? Answer in English. 6 Lesson 1

急ぎです！！ さっき載せれてなかった分の続きです！ 4.5答え分かる方教えてください！ 翻訳かけてもわからないです！

Questions 4-5 refer to the following advertisement. Cottage Rental in Waterloo Stay at this charming cottage in Waterloo on your next vacation. This two-bedroom accommodation has recently been renovated with a new washing machine, dryer and large refrigerator. It features a country-style décor, fireplace and front porch that will help make you feel relaxed. All towels and linens are included. The kitchen is fully stocked with pots, pans, silverware and dishes. Restaurants, a supermarket, antique shop and theater are only minutes away by car. Call 555-2274 for more information. 4. What is indicated about the cottage? (A) It has a garage for two cars. (B) It has a table for eight people. (C) It has a machine for washing clothes. (D) It has an electric heater for cold nights. What is NOT mentioned as a feature of the cottage? (A) Its location (B) Its new appliances (C) Its modern furniture (D) Its relaxing atmosphere

12と13がそれぞれ1と2が答えなのがよくわかりません。意味を見ると両方1も2も当てはまってる気がして…なんでこうなるか教えて下さいお願いします！

2候補者は巧みな駅 2 ①理論から演繹して身近な事例について考察する。 ②個々の事例をもとに演繹的に法則を導き出す。 ①事前に準備しておけば屈託する必要はない。 ②屈託のない赤子の笑顔は世界を平和にするだろう。 RODEROPRA ① 演繹 (姫路獨協大学) 屈毛 (一橋大学) [i な前提から個々の事 一般 的 実を導くこと 気にかけて

現在完了形の『継続』と現在完了進行形の違いがあまり分かりません。 違いをわかりやすく教えてください🙇‍♀️

継続を表す現在完了形と現在完了進行形の違い Hoodent す 継続を表す現在完了形 過去に始まった状態が現在まで継続していることを示 現在完了進行形 過去に始まった動作や行為が現在 ま 現在完了進行形では, 〈動作や行為〉 を表す動詞が用いられる。 。 いました。 で継続していることを示す。

今日学校で、形容詞のものを名詞に直すとどうなるかって言うのをやりました。 例えば2は 名詞になると、 confidence になるみたいな感じです。 私が写真に○を付けました（単語の左横です） その単語について名詞になるとどうなるのか教えてください！

A Words & Phrases 1 Look up the words and phrases in a dictionary. 2 confident /ká:nfədənt/t direction /dərékfon/Fo 3 leadership /li:darjip/ !-R-7 less + 原級(〜ほど)…でない 5 cooperative /kouá:parativ/f anita. 6 modern /má:dərn/ (to inigo mwo 7 focus on ~に重点を置く、~を重視する ※音声は太字のみ ○ empower /impáuǝr/~/+8573 enhance /inhæns/th 10 incredible /inkrédəbl/CSAVACO of etadlo slavilosu na o at a ~ pace /péis /~な速度で 11 tackle /tækl/ + ~ (= √2 | $t ~に取り組む ongoing /á:ngouiŋ/ 10 n

それぞれの回答を教えてください

○区切りごとに意味をとりながら、 音読しよう。sinondai lgme od aid to fish s ei eqneb adT goingiqe bood There dows aevom pitadors There are many dances / around the world. // 2 Each of them / has a and 90 FOR O unique background. // 3 Here, / let's look at three styles of dancing: / the mod as gaisableng da ai maitinummes [waohalvtin duo w hula, / Irish dance, / and breakdancing. // z eu u to orn ini beragaeil neftor pansy roewted siden, eveb seeds alto core 4 The first dance is the hula / in Hawaii. // It comes from the odTgoituloa taon sa eredi li sevisament booles eredmom m indigenous religion there. // In ancient Hawaii, / people showed their brewreftĄ Lidge to reaniw odt ao obiseb of gaisanbodsord een of aage respect for gods / by dancing. // They also danced to pass on important aipasbaleend.vebor 20 di esoros telugog omesed vleubars eodebe values / from generation to generation. // That was because they had no blow edi bauro y a STI Activity formal writing system / at the time. // In other words, / the hula wa adrid riedsfei prutlus up edt diw beta a C OR E CAR more than a leisure activity. // we ai gained engilegt has enabi nigdt beseerxe axed algeoqueado 10 In the hula, / dancers use their hands / to express emotions / an .noitsoinummos messages through the hula.. things in nature. // The dancers believe that they can communicat various messages / through the hula. // ... The next example is Irish dance. It is famous for the dancers' qu |

数学Aの確率の問題です。 127の（2）がどうしても理解できません。 まず、なぜ式変形をして1＋4-n/n(n＋6)になるのから始まり、そこから下に関しては精講を読んでもわかりませんでした！ 教えてください！よろしくお願いします！

基礎問 127 確率の最大値 Pet 白玉5個、赤玉n個の入っている袋がある. この袋の中から、 2個の玉を同時にとりだすとき, 白玉1個, 赤玉1個である確率 をnで表すことにする. このとき, 次の問いに答えよ.ただし, n≧1 とする. (1) n を求めよ. を最大にする n を求めよ. 精講 条件に文字定数nが入っていると, 確率はnの値によって変化する ので,最大値が存在する可能性があります。 確率の最大値の求め方 は一般に,関数の最大値の求め方とは違う考え方をします.それは、 変数が自然数の値をとることと確率 ≧0であることが理由です。この考え方は、 パターンとして頭に入れておかなければなりません. その考え方とは次のようなものです.いま, すべての自然数に対して > 0 のとき, ある自然数Nで, n≦N-1 のとき, すなわち, n≧Nのとき, が成りたてば,nで表されている確率は, OSNO Pn+1>1 Pn pn+1 <1 Pn P₁<P₂<<PN> ÞN+1>...... が成りたちます。だからn=Nで最大とわかります. * LODED Pn+1 と1の大小を比較すればよいのです. ここで, pn Pn+1>1 Pn+1-Pn>0 Pn ですから、 Pn+1- 0の大小を比較してもよいのですが､ 確率の式という のは、ふつう積の形をしていますので,わった方が式が簡単になるのです. (1) pn= 20 pn+1. Pn (2) .. 5C₁*nC₁ n+5C2 = 参考 ポイント 演習問題 127 pn+1−1= Pn 2.5.n (n+5)(n+4) 10n (n+5)(n+4) (n+1)(n+4) n(n+6). 10 (n+1) (n+5)(n+4) (n+6)(n+5) 10n よって,n<4のとき, 解 ·X 4-n n(n+6) 4-n -=1+- 1² n(n+6) n+11 Pn n=4のとき, Ds=pa 答 : D₁<P₂<P3<Þ4=Þ5> P6> Þr>...... よって, n を最大にするnは, 4,5 n≧5のとき,P+1<1 Pn AnCr=- 207 18S n! r! (n=r)! Pn+1の形で1と大 pn 小を比較 <n(n+6)>0 だから 符号を調べるには分 子を調べればよい 確率の最大値は,わって1との大小比較 この式をかく方がわ かりやすい この考え方は確率以外でも ① 定義域が自然数 ②値域 > 0 をみたす関数であれば利用できます。 たとえば,f(n=n(n+3) などです. この関数は n=2で最大になりま 2" すので、各自やってみましょう. ある袋の中にn個の白玉が入っていて、そのうち5個に赤い印 がついている. その袋から, 5個の玉を同時にとりだしたとき 2 一個の玉に赤い印がついている確率をpとおく. ただし, n ≧8 と する.このとき、次の問いに答えよ. (1) n をnで表せ. (2) を最大にするnを求めよ。

一枚目　長文 二枚目　問い 三枚目　答え この問いで色々と疑問点がありしつもんしました。 ①一枚目の付箋（上の）に書いていますがservethemselvesが再帰代名詞になるらしいんですけど訳し方が不明です。 ②一枚目の付箋（下の）に書いていますが緑色の斜線で囲んだ... 続きを読む

serve themselve) i Reading 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 訳の drau 目標 20分 (he) A new *retail concept was introduced in the United States when the first self-service "grocery store named Piggly Wiggly/opened in 1916// Before that, customers used to starframent. bring a shopping list to a neighborhood store and wait while a store clerk collected the items they wanted and measured out products like *flour and rice from large 一方で新しい containers. On the other hand, Piggly Wiggly gave customers baskets and asked (容器) (2) を…の状態で出す くて食べ物] them to serve themselves. They filled their baskets with packets of flour and rice, TE shelf 複数形 (食料品) (棚) cans of vegetables, and other groceries from the store's shelves.. BIRG stocenes from the souhogo を (3)Sales at Piggly Wiggly tog of ondo JB9Tg в Beim J'mol (一般的に) typically bought more when they *made their own selections. 18 15 were higher than at other adow ow: Jeal lliw sIBE odT x (42-=) anel hiny-neque euiq email easly ams 10 expanded to become a chain of stores, and other markets copied the self-service (拡張する) (まねする) (Copy)id behoo (4) Writi model. The modern supermarket was born. ¹ retail [rí:teil]: 9 make a selection : er stores, because customers I& rado nol esmeni ingi 0212 di betuoosi - labom jealsi eril of egneriaxe ens.] It influenced not only the way people shopped but also other aspects of the food 2 grocery store # 12 aspect [æspekt] : wilsop-deid bat0qml ( CAN-DO List (製造会社) a'sibns? vol. business. For example, food manufacturers started using more attractive packaging (6710) Teunitnoo elsa erti lliw gnol wol Soon Piggly Wiggly in order to draw customers to their products. 19dor to bus odi is gainn (168 words) LET muvola Ikan Ce yebir azon Ion] D 4 flour [fláuǝr]: d boy mo lan <知識・技能〉第4文型, 第5文型について理解できる。 <思考力・判断力・表現力〉 近代的なスーパーマーケット esanal juodliw soment bathoml 1.

一枚目　長文 二枚目　問い 三枚目　答え この問いで色々と疑問点がありしつもんしました。 ①一枚目の付箋（上の）に書いていますがservethemselvesが再帰代名詞になるらしいんですけど訳し方が不明です。 ②一枚目の付箋（下の）に書いていますが緑色の斜線で囲んだ... 続きを読む

serve themselve) i Reading 速読問題 次の英文を2.5分で読んで, 1. の問いに答えなさい。 訳の drau 目標 20分 (he) A new *retail concept was introduced in the United States when the first self-service "grocery store named Piggly Wiggly/opened in 1916// Before that, customers used to starframent. bring a shopping list to a neighborhood store and wait while a store clerk collected the items they wanted and measured out products like *flour and rice from large 一方で新しい containers. On the other hand, Piggly Wiggly gave customers baskets and asked (容器) (2) を…の状態で出す くて食べ物] them to serve themselves. They filled their baskets with packets of flour and rice, TE shelf 複数形 (食料品) (棚) cans of vegetables, and other groceries from the store's shelves.. BIRG stocenes from the souhogo を (3)Sales at Piggly Wiggly tog of ondo JB9Tg в Beim J'mol (一般的に) typically bought more when they *made their own selections. 18 15 were higher than at other adow ow: Jeal lliw sIBE odT x (42-=) anel hiny-neque euiq email easly ams 10 expanded to become a chain of stores, and other markets copied the self-service (拡張する) (まねする) (Copy)id behoo (4) Writi model. The modern supermarket was born. ¹ retail [rí:teil]: 9 make a selection : er stores, because customers I& rado nol esmeni ingi 0212 di betuoosi - labom jealsi eril of egneriaxe ens.] It influenced not only the way people shopped but also other aspects of the food 2 grocery store # 12 aspect [æspekt] : wilsop-deid bat0qml ( CAN-DO List (製造会社) a'sibns? vol. business. For example, food manufacturers started using more attractive packaging (6710) Teunitnoo elsa erti lliw gnol wol Soon Piggly Wiggly in order to draw customers to their products. 19dor to bus odi is gainn (168 words) LET muvola Ikan Ce yebir azon Ion] D 4 flour [fláuǝr]: d boy mo lan <知識・技能〉第4文型, 第5文型について理解できる。 <思考力・判断力・表現力〉 近代的なスーパーマーケット esanal juodliw soment bathoml 1.