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

英会話の授業で、ペアで英語で質問し合うというものがあるのですが、なかなか質問文が思いつきません💦 例えば、what did you do last weekend?などです。 簡単な質問文でいいので、できるだけたくさん教えて欲しいです🙏

高校英語です、3番教えて欲しいのと、ほか合ってるか見てほしいです。🙇‍♀️

6 Fill in the blanks and complete the sentences. 1. (IME) ( 家に帰ったら手を洗ってね。 2.( 4. | discuss / talk ] the environmental issue today. Igniveal al nip 7. ( LUhing ] Shin-Yokohama Station. 3. Once you have made a decision, ( 6. ( ) ( ) ( 怖がらないで。あなたならできるよ! [2] 1) (d) when you come home. ) Jabib I dhe ) ( 午後3時ですね, ひと休みしましょう。 いちど決めたんだから,考え直しちゃだめだよ。 ) ( (これは)なんてすばらしい景色なんでしょう! ) (Jor all of) this bag (( ). You can do it! Cal. ) ( You need an app to decorate pictures? ( It's very easy to use and it's free. 写真に飾りをつけるアプリがほしいの? これ試してみてよ。 使いやすくて無料だよ。baserield ard ni 5. It's 3 p.m., so ( ) a break. ) I'mooh tu macan aidi ) twice. (moderto)(orw( it is! ( )!) ( FactF mondo Facti bard sift to rurdle jeslift 1) (qq).UT] このバッグはなんて高いんだ! JIMM 8. ( ( ) ( 0000000 ) on this street. この通りにはコンビニエンスストアが3軒あります。 islans rok fine ootal schant jud Fact bue hard sed to admmx50T (L 2014 ( e-pad Fact dag er do (d Faci Fact inlbus silt bus Fact ) ombal (d -EPI434 Basmahdo no ・Fact Fact ) bsm Fact Fact ) liw PLU

Apart fromも離れるの意味だと思うのですが、なぜ2ではダメなのでしょうか？😭

1122 VITA Drinking water must be ( ) from anything capable of causing disease. ( (tert) bristong -1... (lend) 1 free 2 apart 3 lack 4 except 〈 いわき明星大 >

空欄部分が分かりません! 教えてください

おうちのかたへ 渡してください 23HP03-01 UNITO FACTBOOK GRAMMAR 45 回生 English Logic and Expression I 1 Fill in the blanks and complete the sentences. 1. (Where )( ) you go for your school trip in junior high school? were 中学校の修学旅行ではどこに行きましたか。 ) you ( have Did 中学校では合唱コンテストはありましたか。 2.( ) a chorus contest in junior high school? 3. ( How (often どのぐらいの頻度で映画を見に行きますか。 4. ( What kind ) ( ) ( どんな音楽が好きですか。 5. ( How ) ( 今までにいくつの国を訪れたことがありますか。 ) do you go to the movies? of amany) (countlys) have you visited? 2. 3. I like listening to 2 Put the words in the correct order to complete the sentences. 1.[I/in/park / the / walk] in my free time. 私は時間があるときにはその公園を散歩します。 2. 【action アクション映画を見ると本当にわくわくします。 movies/exciting/is/really/watching ]. ) music do you like? 3. [listening/like/I/music/ to ]. 私は音楽を聞くことが好きです。 4. Our homeroom teacher [important/many/things/us/taught]. 担任の先生は私たちにたくさんの大切なことを教えてくれました。 5. [ called/everyone / at / me / Mika ] my junior high school. 中学校でみんなは私のことをミカと呼んでいました。 1. I walk in the park in my free time. music. 4. Our homeroom teacher taught us 5. Everyone called mer called me at Mila mony important thing my junior high school. C

強調・倒置です。わかる方教えてください🙇🏻

2 次の英文を日本語に直しなさい。 Joliero odt netto ai as A Bmw peoqqua I Asbout 1. I was completely lonely in Australia during my homestay. 2. Never did I dream that I could talk with the famous singer. 3. So great was the delight of the citizens.101 9101919 vď who ori 4. Do come and see us when you are free. panas & nomor Wond 5. 6. 7. 86 16Ì 86 ,919w1 as: No Why on earth would you want to go out late at night? Shohei Otani is the very person I met in Arizona last year. Tired as I was, I tried to help my mother. I evailed 1 Anids L:

強調・倒置の範囲です。わかる方教えてください🙇🏻

2 次の英文を日本語に直しなさい。 Joliero odt netto ai as A Bmw peoqqua I Asbout 1. I was completely lonely in Australia during my homestay. 2. Never did I dream that I could talk with the famous singer. 3. So great was the delight of the citizens.101 9101919 vď who ori 4. Do come and see us when you are free. panas & nomor Wond 5. 6. 7. 86 16Ì 86 ,919w1 as: No Why on earth would you want to go out late at night? Shohei Otani is the very person I met in Arizona last year. Tired as I was, I tried to help my mother. I evailed 1 Anids L:

英表DualscopeⅡのUnit17のexerciseの答えを教えてください。

-EXERCISES A Complete the sentences with the words in brackets. (1) I liked life in Osaka best (I / lived / had / there / for / though) only two years. (2) ( even / you / join / if / the volunteer / do not) club, you can still help in the community. 4372 harde o taborn you de 300 bri (3) (what / matter / we / reason / have / no), we must not start a war. (4) Peter will not take any time off ( of / spite / order / in / his doctor's ). (5) ( of / freedom / is / speech / though / even) the basis of democracy, few people understand what it means. (6)( not / whether / or / computers / like / we ), we cannot imagine life without them. une lis 10 1390.in B Fill in the blanks to complete the dialogs. (1) Satoshi: You've lived in Japan for three years. Have you ever been to Kyoto? Olivia: Yes, of course. I always find something new N 京都でどこを訪れても (2) George: Takeshi seems to have overslept and missed the nine o'clock train! Mika: Oh, no! He won't be on time for the ceremony たとえ飛行機で来ても (3) Kate: Is that man your tennis coach? Fred: Yes. He will be seventy next month, but he is still active He jogs five kilometers every morning. Let's Try ! ALLA sd Illw #2910x3 C Express the following in English. (1)たとえ政治に興味がなくても、選挙権をもつ人は投票しなければならない. (2) 結婚で仕事を辞める女性もいるが,最近ではより多くの女性が定年まで仕事を続ける . _________: 彼の年齢にもかかわらず InT [retirement age ] (3)優先座席であろうとなかろうと,いつも自分の席をお年寄りに譲っている.〔priority seat〕 (4)ユニバーサルデザインの普及にもかかわらず,障がいのある人々が街を動き回るのはいまだに 困難だ.〔universal design, disabled people〕 (5)日本は高齢化が急速に進んでいるにもかかわらず,老人ホームの数が十分ではない。 [nursing home]

化学の状態の問題です。 1K上げるのに必要な熱量を求める時にどうして 4.2×9.0×（50＋273）ではなく 4.2×9.0×（50−0）なのでしょうか？教えてください。

問 10℃の氷9.0gを加熱して50℃の水にするのに何kJの熱量が必要か。 ただし, 氷の融解熱を6.0kJ/mol, 水1gの温度を1K上げるのに必要な熱量を4.2J/(g・K), 分子量はH2O = 18 とする。 solidification 融解: melting 融点: melting point 融解熱: heat of fusion 凝固: 凝固点 : freezing point 凝固熱 : heat of freezing 蒸発: vaporization 沸点: boiling point 凝縮: condensation 蒸発熱: heat of vaporization 凝縮熱: heat of condensation 7

もし明日あなたがひまなら、どうぞ私を訪ねてください。 を、英文にして頂きたいです…💦‬ 画像に問題文載せときます！お願いします…！！((>_< ;)

2 次の日本語に合うように,( )内の語句や符号を並べかえて英文を完成しましょう。 ただし、不要な語が1つずつ含まれています。 (文頭は大文字に) (1) もし明日あなたがひまなら、 どうぞ私を訪ねてください。 (me/are/ please/visit/ you / if / free / because) tomorrow. (2) 昨日けでもか くみ 羊け室に #1 to