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英語 高校生

36,37,38の答えが分かりません。 どなたか教えていただけませんか?

asked strange questions so that the answers would sound funny and make them smile. that answer was true or not. Later in the interview, the volunteers were deliberately In the study, the scientists conducted interviews with volunteers. The volunteers recent study by scientists at the University of Portsmouth has shown that people can When people communicate face to face, they do not just communicate by speaking language. There are other factors involved, such as gestures. If the person you are tell if a speaker is smiling or not even without seeing their face but just by listening were asked to answer all questions with “I do in the summer,” regardless of whether talking to frowns, you know that he or she is unhappy. Whena person laughs during a conversation, you can tell that that person thought something was funny. However, a The interviews were videotaped with the purpose of gathering samples of different C 35) Smiling from Ear to Ear to their voice. of smiles. The scientists then analyzed the smiles. types According to the scientists, there are as many as 50 different kinds of smiles. T he researchers then had different group of volunteers listen to the audio portion of the recordings. This group of volunteers could tell what kind of smile the speaker had on his or her face by just hearing their voice. This indicated to the scientists that the voice has characteristics that communicate feelings and that people can interpret them. Another study also suggests that customer satisfaction is closely related to friendliness. As we all know, the best way to show friendliness is to smile. Researchers think that using the smiling voices in products or services effectively, Such as answering systems and computer programs, can contribute to better customer service. This can also be applied to hiring and training staff. Since people can tell ifa smile is real or not by a person's facial expression, and it has been proven that people, for example, customers can tell if a staff member's smile is real or not just by listening, then smiling not only from the bottom of your heart, but with your voice may be a g0od way to improve business.

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数学 高校生

(2)の解き方を教えて頂けると助かります。

う存在範囲の応用】 力 ある工場で使用している機機械の管理について考えたい。 【2次 12. basic p.71 例題6 動してから時間×が経過したときの, 機械のある部分の度によって定まる指標をかとする。 このとき, pとxは p= 2x+1 x*+3x+2 (*)という 係にある。この機械は, pの値が を 超えるとトラブルが生じゃすく,かの値が大きいほどその危険性が高い。工場ではこの機械の 2 作監視を強化するにあたり,最もトラブルが生じやすい時世帯を中心に監視を強化したい。 (1)x>0 の範俺囲で か= 2 となるxが存在するかどうか調べる。 2x+1 の分母を払って 2 x*+3x+2 得られるxの2次方程式をx>0 の範囲で解き, p= となるxが存在するかどうか判定せよ。 2 pが最大となるxの値 x。 を求めたい。 なぜなら、 最もトラブプルが起こりやすいのは、 起動し 時間 X。が経過したときであり, この時間帯を中心に機械の監視を強化すればよいからである。 pが最大となるxの値を求めるには, (*)の分母を払って得られるxの2次方程式 px°+(3p-2)x+20-1=0 がx>0 の範囲に少なくとも1つの実数解をもつようなかの値の範囲を調べればよい。 (ア)pのとりうる値の範囲を求めよ。 (イ) pが最大となるxの値 x, を求めよ。 【類桃山

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