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数学 高校生

この問題の(2)がわかりません

する。 2.3 重要 例題 71 定義域によって式が異なる関数 関数f(x) (0≦x≦4) を右のように定義すると き,次の関数のグラフをかけ。 (1) y=f(x) 解答 指針 定義域によって式が変わる関数では,変わる境目のx,yの値に着目。 (2) f(x)) f(x)のxにf(x) を代入した式で, (1) グラフは図 (1) のようになる。 (2) 0≦f(x)<2のとき2f(x), 2≦f(x) ≦4のとき 8-2f(x) (1) のグラフにおいて, 0≦f(x) <2となるxの範囲と, 2≦f(x)≦4となるxの範囲 を見極めて場合分けをする。 f(f(x))={-2}(x)(f(x)=4) よって, (1) のグラフから 0≦x<1のとき 1≦x<2のとき 2≦x≦3のとき 3<x≦4のとき 上に (2) y=f(f(x)) 4 2 O 1 1 1 =8-4x (p+6 + f(f(x))=8-2f(x)=8-2(8-2x) LOCALE =4x-8 f(f(x))=2f(x)=2(8-2x) =16-4x によって, グラフは図 (2) のようになる。 (1) TAD (2) YA YA 1 1 I 1 1 I 1 2 3 4 2x f(x)= { ² - 2x 鳥 (0≦f(x)<2) x f(f(x))=2f(x)=2.2x=4x f(f(x))=8-2f(x)=8-2・2x 向 (2≦f(x))の変域は DO I 1 0 1 2 3 4 (0≦x<2) WITHO 変域ごとにグラフをかく (1) のグラフから, f(x) x 0≦x<1のとき 0≦f(x)<2 1≦x≦3のとき 2≦f(x) ≦4 3<x≦4のとき 0≤ f(x) <2 また, 1≦x≦3のとき 1 f(x)の式は 1≦x<2なら f(x)=2x 2≦x≦3なら ------- f(x)=8-2x のように,2を境に VER JELE 式が異なるため, (2) 50 の解答のような合計 A. 6ES 交県なってくる。 りの場合分けが必要

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英語 高校生

FLEX2 レッスン3 教科書のcompressionが分からなさすぎてヘルプです

Choose the appropriate answer. hartan art ell 1. It became more important for people to get salt a. when Roman soldiers were given money to buy it b. when people started to hunt animals for food c. when people ate less meat and began to eat more grains and wheat 3. The influences of salt can be seen a. in modern cultures b. not in languages but in customs and religions c. more in languages than in customs or religions boyasdo 2. What ancient people discovered was a. that salt could stop droughts and help people survive a lack of food b. that salt helps bacteria grow foods c. that salt keeps foods from going bad 4 4. Thanks to some discoveries by scientists, a. people have changed how they produce salt b. people have begun to use salt in new ways edme c. people have found that salt has always had an influence on many cultures Salt is 1 dor d blues 2 Fill in each blank with the most appropriate word to complete the summary. EXTER Jika ODOY velg avs ) for our lives and we cannot live without it. In ancient times, as people be eat more food which were low in salt, they needed a lot more salt to survive. Eventually it bec 2 3 ) trade item. Also, salt was used to ) famines and travel to ) food. Because of this, people 5 ancient people, has also 6 ) places. Salt, which was very importa modern cultures. Some used, and its influence can also be found in some ) related to salt an 8 ). One important scie 9 ) enabled people to produce new things. Salt is now a common item, but it has had ) on the world. 10 7 affected / available / decrease / discovery distant expressions impact / precious / preserve / religions essential survive

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英語 高校生

1問でも構いません教えてください🙇‍♀️

Every sentence has a mistake. Correct the mistake in each sentence. don't Fernando and Carlos doesn't have a car. Example: 1) Do you live in campus, with family, or with friends? 2) Susan doesn't like go to the library in the morning. 3) What time does class finishes in the afternoon? 4) I like to sing, but I can't a musical instrument. 5) I like to play ski in winter. 6) There aren't some coffee shops near here, I'm afraid. 7) Excuse me. Where's post office, please? 8) I like it here, but there are a lot of noise. 9) Turn left onto Main Street and it's to the left. 10) Hey! Is that your sunglasses over there? 11) How much this coffee, please? 12) I live behind of a large supermarket. Part V- Grammar (16 points) Write ONE word in the space to complete the sentences. 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) Go 14) Are 15) How 16) you work in Singapore? do they study there? My cousin My friend Helen "Do they study at university?" "No, they I like. My girlfriend study. He works. her homework in the library. play my guitar in the evening. There aren't How do I Is there a grocery store. aerobics, but she doesn't like yoga. he ski?" "No, he can't." there a good restaurant near the hotel? coffee shops in this street. to the City Hospital? here? ahead. It's next to the Italian coffee shop. shoes over there yours? is this pen? store is expensive. Let's go to another store.

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英語 高校生

While it is not known to be painful, synesthesia can cause for some people. For example, sounds or words may have a bad taste, smell, or ... 続きを読む

問5 下線部 (5) を含む文の主語は most people with synesthesia です。 語中に and が あるので, are と want という2つの動詞を結ぶと考えられます。 また, 語中に do と not があるので, do not want と否定文を作ることができます。 下線部の後に to change と書かれているので, do not want to change とつなげることができます。ここまでを ] まとめると, [ are.... and do not want I to change となります。 odbnaba ® すると, are の後に続く補語が欠けていると考えられます。このパラグラフでは前半 で synesthesia が問題を引き起こす可能性があると述べられ, 下線部 (5) を含む文の 冒頭では However という 〈逆接〉の副詞が与えられているので, synesthesia に対す る肯定的な見解が書かれていると判断できます。 また, 下線部 (5) を含む文に続く文 でも, 「彼らは共感覚を1つの才能とみなしており、もしそれがなくなったら、 自分の 周りの世界を経験することが今より楽しくなくなってしまうであろう」と述べられてい ることから, synesthesia を持つ人々がそれに「満足している」と肯定的な形容詞を補 うことが考えられます。 よって, are happy with it and do not want が正解です。 また, happy の代わりに satisfied / contented / delighted / pleased / excited など 「満足し ている」 「喜んでいる」 といった形容詞を入れることもできます。

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