学年

質問の種類

数学 高校生

vision questⅡ English expression hope70ページ preview 1.date&time 2.numbers(sizes,measurements,etc) 3.prices&Phone numbers listening task 1.... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

回答募集中 回答数: 0
英語 高校生

vision questⅡ English expression hope70ページ preview 1.dates&time 2.numbers(sizes,measurements,etc) 3.prices&Phone numbers listening task 1... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

回答募集中 回答数: 0
英語 高校生

vision questⅡ English expression hope70ページ preview 1.dates&time 2.numbers(sizes,measurements,etc) 3.prices& Phone numbers listening task ... 続きを読む

140 // TIT Activity for Communication 3 Preview Listen to the sentences below. 1 Dates & Times Listening for Numbers the on Enio 1. "The movie starts at 5:20. Can you be ready in ten minutes?" "OK. I'll try." 2. "What time is it now?" "It's 11:30." basalaila awohlsw 3. I have an appointment with the dentist this Thursday, the 10th. M 4. "When does school begin?" "It begins on April 8th." 5. Our school was established in 1965. 6. My family has lived in this town since 2005. 2 Numbers (sizes, measurements, etc.) 1. Two thirds of the students come to school by bus. 2. One mile is about 1,609 meters. 3. The city has a population of about 2.5 million. 4. The temperature dropped to 12°C. 5. APA Air Flight 125 for London will be departing from Gate 14 at 10:15. 3 Prices & Phone numbers 1. The price of this bag is $27.89, but you can have it at 10 percent off. 2. What would you do if you won 100 million yen in a lottery? 3. "A hamburger and a cola, please." "That'll be £2.99." 4. I need €20, but I'm €5 short. 5. My phone number is 612-750-5613. Listening Task Listen to the conversations and choose the correct answers. 1. How much of the earth's surface is covered by ocean? 1 more than one third more than one fourth 監督署 ER 70 3 more than two thirds 4 more than two fifths 2. When were the Olympic Games held in Atlanta? 1 in 1966 2 in 1969 3. How much did the dress cost? 1,100 yen 2 1,800 yen 3 in 1996 4 in 1999 S 8,000 yen ③ 13,000 48,800 yen bluros ④ 30,000 about 200,000 4. How many people can the concert hall hold? ① 1,300 ② 3,000 5. How many people live in the city? ①about 2,000 2 about 12,000 3 about 20,000 ① 207-7300 2207-7003 ③ 702-3300 6. What's the phone number of the restaurant? The number is 510- ④ 702-3003

回答募集中 回答数: 0
英語 高校生

この問題の答えを教えて欲しいです

B You are an exchange student in the US and next week your class will go on a day trip. The teacher has provided some information. 問1 Yentonville has 3 a church built 250 years ago when the city was constructed Tours of Yentonville The Yentonville Tourist Office offers three city tours. The History Tour BB [] [ The day will begin with a visit to St. Patrick's Church, which was built when the city was established in the mid-1800s. Opposite the church is the early-20th-century Mayor's House. There will be a tour of the house and its beautiful garden. Finally, cross the city by public bus and visit the Peace Park. Opened soon after World War II, it was the site of many demonstrations in the 1960s. The Arts Tour The morning will be spent in the Yentonville Arts District. We will begin in the Art Gallery where there are many paintings from Europe and the US. After lunch, enjoy a concert across the street at the Bruton Concert Hall before walking a short distance to the Artists' Avenue. This part of the district was developed several years ago when new artists' studios and the nearby Sculpture Park were created. Watch artists at work in their studios and afterwards wander around the park, finding sculptures among the trees. The Sports Tour First thing in the morning, you can watch the Yentonville Lions football team training at their open-air facility in the suburbs. In the afternoon, travel by subway to the Yentonville Hockey Arena, completed last fall. Spend some time in its exhibition hall to learn about the arena's unique design. Finally, enjoy a professional hockey game in the arena. Yentonville Tourist Office, January, 2024 ② a unique football training facility in the center of the town ③ an art studio where visitors can create original works of art 4 an arts area with both an art gallery and a concert hall 2 On all three tours, you will 4 learn about historic events in the city 2 see people demonstrate their skills 3 spend time both indoors and outdoors use public transportation to get around 3 Which is the newest place in Yentonville you can visit on the tours? 5 ①The Hockey Arena The Mayor's House 3 The Peace Park 4 The Sculpture Park

解決済み 回答数: 1
数学 高校生

下の問題を二枚目の写真のように解きました。 このやり方だと,XとYの値が求めれなかったのですが,求め方はありますか? また,解説のように解く方がいいですか?

その 基本 89 した 00000 実数x,yx+y2=2を満たすとき, 2x+yのとりうる値の最大値と最小値を 求めよ。 また、そのときのx,yの値を求めよ。 指針 [類 南山大 ] 基本101 条件式は文字を減らす方針でいきたいが,条件式x2+y2=2から文 字を減らしても2x+yはx,yについての1次式であるからうま くいかない。 そこで, 2x+y=t とおき,tのとりうる値の範囲を調べることで, 最大値と最小値を求める。 ← 2x+y=t を y=t-2x と変形し,x2+y2=2に代入してyを消 去すると x2+(t-2x) =2となり,xの2次方程式になる。 xは実数であるから,この方程式が実数解をもつ条件を利用する。 実数解をもつ⇔D≧0 の利用。 見方をかっ CHART 最大 最小 =tとおいて,実数解をもつ条件利用 20 2x+y=t とおくと y=t-2x ① 解答 これをx2+y2=2に代入すると したがって x2+(t-2x)=2 整理すると 次 5x2 -4tx+t2-2=0 自去す このxについての2次方程式 ② が実数解をもつための 条件は、②の判別式をDとすると (+)=S+ツの不等式)。 (2) D≧0 ここで D=(2t)-5(2-2)=-(t-10) D≧0から 参考実数a, b, x, yに ついて,次の不等式が成り 立つ (コーシー・シュワル CONCE(ax+by)≤(a+b)(x²+ y²) [等号成立は ay=bx ] この不等式に a=2,6=1 (を代入することで解くこと できる。 t2-10≤0 フェ これを解いて -√10 ≤t≤√10 t=±√10 のとき, D=0で,②は重解 x=- -4t_2t を のとき②は t=±√10 2.5 5 もつ。=±√10 のとき x=± 2/10 よって 5x2+4√10x+8=0 よってまたは 5 /10 ①から y=± (複号同順) 5 よって x= 2/10 10 y= のとき最大値10 主 ゆえに 2√2 2/10 x=± =土・ 5 √ 10 5 ” 5 2/10 √10 x=- 5 " y=- のとき最小値√10 √5 ①からy=土- 5 (複号同順) 5 としてもよい。 である。 たすとき の

解決済み 回答数: 1