68. 表を書けばいいと思いつけばあとは簡単だと思うものの、表を書くことを閃く自信がないのですが高次不等式の問題は表を書いて解くのが一番いい方法ですか？

108 重要 例題 68 高次不等式の解法 次の不等式を解け。 ただし, α は正の定数とする。 x-(a+1)x2+(a−2)x+2a≦0 指針▷まず,不等式の左辺を因数分解する。 因数定理を利用してもよいが,この問題では、 次の文字αについて整理する方が早い。 (x-ar)(x-B)(x-x)≧0の形に変形したら、後は各因数x-α, x-px-yの符号を割 て, (x-a)(x-β) (x-y) の符号を判定する。 なお,α,ß, yに文字が含まれるときは,α, B, yの大小関係に注意する。・・････ 解答 不等式の左辺をα について整理すると (x²-x²-2x)-(x²-x-2) a ≤0 x(x+1)(x-2)-(x+1)(x-2)a≦0 (x+1)(x-2)(x-a) ≤0 0<a<2のときx-lax2+ a=2のとき x≦-1, x=2 2 <a のとき x≤-1, 2≤x≤a よって [1] 0<a<2 右の表から, 解は x≦-1, a≦x≦2 [2] a=2のとき x-a 不等式は (x+1)(x-2)=0となり,x-2 (x-2)^2≧0であるから f(x) x-2=0 または x+1≧0 (20)+(1-8) (D-1)+(ーー) α<β<yのとき (x-a)(x-β)(x-x)≧0の解は (x-a)(x-β) (x-x) ≧0の解は x x+1 a≤x≤ß, r≤x xha, Baxy [1] f(x)=(x+1)(x-2)(x-a) x (01 検討 3 次不等式を3次関数のグラフで考える 3次関数y=f(x)のグラフについては,第6章の微分法のところで 詳しく学習するが、グラフの概形は右の図のようになる。 このグラフから 4x²-x²-2x x-2 x-a f(x) =x(x-x-2) =x(x+1)(x-2) ゆえに, 解は x≤-1, x=2(x+1+0+(1+6)S-A+brys [3] 2<αのとき 右の表から,解は x-1,2≦x≦a [1]~[3] から 求める解は - 0 0 0 00000 ... a ... 2 …. + + + + + 0 + ++ [3] f(x)=(x+1)(x-2)(x-a) ... -1... 20 - 0 + 0 - + H + 28. 11.03 - 0 + 0 + 22 +0|0 + + FIT - B 1 a + + 0+ 0 + 2

答えに解説がなくて困ってます。 下の長文を翻訳してください。

〔Ⅰ〕 次の英文を読み. 設問 1~21 に答えよ。 Sandy lives in an apartment so small that when she comes home from shopping, she has to decide what to move out to make room for her purchases. She struggles day-to-day to feed and clothe herself and her four-year-old daughter on money from freelance writing jobs and helping neighbors. (2) Her ex-husband has long since disappeared down some unknown highway, probably never to be heard from again. As often as not, her car decides it needs a day off and refuses to start. That means bicycling (weather permitting), walking or asking friends for a ride. 13 The things most Americans consider essential for survival- a television. microwave, big freezer and high-priced sneakers are far down Sandy's list of "maybe someday" items. (5) Nutritious food, warm clothing, an affordable apartment, student loan payments, books for her daughter, absolutely necessary medical care and an occasional movie eat up what little money there is to go around. Sandy has knocked ) more doors than she can recall, trying to find (7) a decent job, but there is always something that doesn't quite fit-too little experience or not the right kind, or hours that make child care impossible. Sandy's story is not unusual. Many single parents and older people struggle with our economic structure, falling into the gap between being truly self-sufficient and being poor enough that the government will provide assistance. What makes Sandy unusual is her outlook. "I don't have much in the way of stuff or the American dream," she told me with a genuine smile. "Does that bother you?" I asked. "Sometimes. When I see another little girl around my daughter's age who has nice clothes and toys, or who is riding around in a fancy car or living in a fine house, then I feel bad. Everyone wants to do well for their children." she replied. "But you're not angry?" "What's to be angry (9) and I have what is really important in life," she replied. "And what is that?" I asked. (10) "As I see it, no matter how much stuff you buy, no matter how much )? We aren't starving or freezing to death. (11) money you make. you really only get to keep three things in life." she said. "What do you mean by 'keep?" (12) "I mean that nobody can take these things away from you." "And what are these three things?" I asked. "One, your experiences: two, your true friends; and three, what you grow inside yourself." she told me without hesitation. (13) For Sandy, "experiences" don't come on a grand scale. They are so-called ordinary moments with her daughter, walks in the woods, napping under a shady tree, listening to music, taking a warm bath or baking bread. Her definition of friends is more expansive. "True friends are the ones (15) who never leave your heart, even if they leave your life for a while. Even after years apart. you pick up with them right where you left off, and even if they die, they're never dead in your heart," she explained. 16 ) to each of us. (17 As for what we grow inside, Sandy said, "That's ( isn't it? I don't grow anger or sorrow. I could if I wanted to, but I'd rather not." "So what do you grow?" I asked. Sandy looked warmly at her daughter and then back to me. She pointed toward her own eyes, which were shining with tenderness. gratitude and a sparkling joy. "I grow this." From the book Chicken Soup for the Woman's Soul by Jack Canfield. Mark Victor Hansen. Jennifer Read Hawthorne, and Marci Shimoff. Copyright 2012 by Chicken Soup for the Soul Publishing, LLC. Published by Backlist. LLC. a unit of Chicken Soup for the Soul Publishing. LLC. Chicken Soup for the Soul is a registered trademark of Chicken Soup for the Soul Publishing, LLC. Reprinted by permission. All rights reserved.

写真の３つの問題を教えて下さい。

Main Idea 1. ( ) What is the article's main idea? (A) Every city works hard to improve itself. (B) Tokyo sent the IOC a great bid for the 2020 Olympics. (C) Very few cities compete to host the Olympics. (D) Hosting the Olympics has its benefits, but there are risks. Detail 2.() What do cities do before the IOC chooses a host? (A) They build new roads. (B) They reuse their stadiums. (C) They rename train lines. (D) They make detailed plans. 3. ( ) What does the article suggest about Squaw Valley? (A) It had to pay off a big debt after hosting the Olympics. (B) The town was not a top ski resort before 1960. (C) Squaw Valley's Summer Olympics were a big success. (D) Concerts and other events are now held in its stadium.

シャーペンで書いてある考え方はなぜ求められないんですか、？

1²0 炭酸ナトリウム Na2CO3 5.3gに含まれるナトリウムイオン Na+ は何個か。

青い}で示した数列の和って丸で囲んだ式で合ってますか？

510x101 1.0X1070/ 2,0x/0-3 ~ 2,5 x 105 t₁² 2.4² +3·4² +4.4ª +in+ n.4″+ (nel) 4^ ghti 2.4043, 44 troethe -14 tn= ~3 t n = 2₁4²³² + √√·43 + ligt fleit tightlights - (nti) qhtz 4 和 初項64,公比4項数n → N-1 3=ntl 4 4² '+ (ner) fitz 64(4^-17 44 ni n項 3 4²³ +4²+ &² +1.49².

英作文の添削をお願いします！！ 眠い中書いたので字が汚くて申し訳ないです。

I don't think people's salaries shall be based on their job pertamance. I have two reasurs. In the first place, everyone have different skills. Many people don't always work well, so It is no equal. In the second place, if it be be hused on their age, itt's can be said to be equal. Mart geople get More a family on they get older, so they need money. Therefore, I think it is bad for people to have their salaries besed on their job performance.

Scramble英文法 並び替えと正誤問題の答えを教えて頂きたいです

6 地下鉄が混んでいたのは雪のせいでした。 It (was / was crowded / the snow / the subway/that/because of) . 7 彼らは,これが最後の食事で,この後数日間何も食べられなくなるだろうとは 思いもしなかった。 Little (did/realize/ that / they / this / would) be their last meal for several days. (追手門学院大) fit). CHALLENGE 1( )内の語を正しく並べ替えなさい。 2,3は誤りのある箇所を 発展 選び、正しく直しなさい。 1 彼女はなぜそんなに魅力的な提案を受け入れなかったのでしょうか。 How (is/ that/not/did/she/it) accept such an attractive offer? (愛知工業大) りのある所 (東京国際大) 正しい 2 Only through intensive and extensive research can a drug to combat the virus being found. (学習院大 ) りのある所 正しい形 (関西学院大) 3 During searching for cash, the thieves came across a woman hiding 0 upstairs. (学習院大)

この問題が分かりません 教えてください

5 Many philosophers have argued that nature has little or no [21] can give it. However, we have failed to place sufficient value on key biological resources. For example, though forests are richest in the tropics, these regions contain many of the poorest countries today. Often, the poverty of the local people is blamed for environmental destruction. However, the weakness of property rights in those countries is a more important, but overlooked, factor. Poor eople often do not care about forests, except as a means to gain immediate benefit. To address this, governments in such poor countries need to establish poor people's rights to the biological riches around them, letting them own and manage these natural areas. [22] surely recognize the benefits of maintaining their forests.

His feet have grown so much this year that none of his shoes fit him. にあるthatはなんのthatでしょうか？どんな文法か教えて欲しいです🙇🏻‍♀️ また、none ofは熟語ですか？？

An angel's〜の文章構造がわからないです。starting は文中でなんの働きをしているのでしょうか。

other things, such as marketing efforts and product improvement. An angel's commitment to someone starting a business) is often a [ 31 In addition to collecting huge profits from high-growth start-ups, angels receive the satisfaction of playing a major role in a success story. In return, angel- supported businesses receive the expertise of top businesspeople and technical