Grade

Type of questions

Mathematics Senior High

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

Waiting for Answers Answers: 0
English Senior High

右側のquiz の答えを教えてください! 埋まってないところがわからなかったので教えて欲しいです!

F010,014 あるが、 で表す & ,287 Lesson 1-1 Quick Review 1. 夏休みはもう1週間ある。 We... 2. 彼女の目は青色だ。 She 4. 3. この街には動物園がある。 There is a zoo 今朝はあまり食欲がない。 I have another week of summer vacation. has blue eyes. 5. あなたは全力を尽くしました。 You did you... □ 6. 信号を無視してはいけない。 We 7. 日本では, 冬にマスクを着ける。 We 12. 私の番です。 It's don't have much of an appetite this morning. 主語 ① in this city. shouldn't run a red light. They □ 9. 今日はリサの誕生日です。 It's wear masks in winter in Japan. 8. イタリアでは時折, 大きな地震が起きる。 LAST 10. 今日は曇りで涼しい。 It's best. 11. 市役所まで遠いですか。 Isit Lisa's birthday today. Quiz 「西洋諸国ではマスクを着けない」に。 They don't wear masks in western countries. Quiz 「日本では」に。 sometimes have big earthquakes in Italy. We sometime have big earthquakes in Japan. cloudy and cool today. far to City Hall? 15. テレビの調子が悪い。 Quiz There is 構文に。 Quiz be 動詞を使った文に。 Her is blue. eyes. Quiz 「博物館が2つある」 に。 There is two museum in this city. Quiz 「今朝はあまり食欲がないんだね」 に。 Quiz 「私は全力を尽くしました」に。 I did my best. There is something wrong the TV. with Quiz 「食べ過ぎてはいけない」 に。 We shouldn't eat too much, Quiz 「今日は母の日です」 に。 It's mother's day today. L1 Quiz 「今日は晴れで暖かい」に。 It's sunny and warm today, dade Quiz 「約300mです」 と答える。 About 300 meters, Quiz 「誰の番ですか」 に。 [11] and Who is turn? my turn. 13. サッカーが好きな男の子もいれば,野球が好きな男の子もいる。 Some like phone, and others Some. like soccer, and Others like baseball. 100: like mail. Quiz 「電話が好きな人もいれば, メールが好きな人もいる」に。 Quiz 「子どもは減っている」 に。 14. 日本では高齢者が増えている。 The number of elderly people in Japan is increasing. Quiz 「私の腕時計の調子が悪い」に。 There is some thing wrong with my watch.

Resolved Answers: 1
English Senior High

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]

Waiting for Answers Answers: 0