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英語 高校生

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The Milltown Cinema's outdoor cafe will be closed the winter months. 1. about out of 3. next to 4. during 2. The department-wide changes suggested unanimous approval from company management. 1.. in Ms. Juntasa received 2. of 3. by 4. as 3. The content on the Aspero Designs Web site is protected by copyright law and may not be reproduced - the company's written consent. 1.. behind without 3. except 4. before 4. Dr. Hemana and Dr. Wareham, the joint recipients of the Cobalt Research Prize, have known since they were university students in Auckland. 1. other one 2. another one 3. any other 4. each other 5. This afternoon's flights to Barcelona, London, and Rome have all been delayed inclement weather in the destination cities. 1. as for 2. due to 3. now that 4. only if 6. Patrons who arrive at the theater the show has begun will not be seated until the intermission. 1.. wherever 2. into 3. along 4. after 7. The new-product development meeting will be held either in Room 402 in Room 501. 1.. or 2. and 3. not 4. but 8. Printer cartridges can be found in the supply cabinet the file folders. 3. 1. at 2. from with 4. along 9. Mr. Wong will travel to the management seminar in Singapore on 1.. he 2. himself 3. him 4. his own 10. Market researchers reported that customers were most impressed the Vestra Coffeemaker's delayed-start function. 1.. by 2. beyond 3. for 4. since After December 13 customers will be asked to place their orders online use the mail-order form. 1. so as 2. in case 3. rather than 4. provided that 12. its main competitor, the ergonomic chair offered by Well Designs is lightweight and comes in a variety of colors. 1.. In contrast to 2. By wayof 3. Instead of 4. So as

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数学 高校生

(2)②の問題の解説を読んでも分かりません( ̄▽ ̄;) 誰か教えてくださいお願いしますm(_ _)m

と同時に頂点Bを出発し, 毎秒1cmの線分 ABを高さと かって移動する。また, 点Qは, 点Pは, 辺 PQを底辺 2cm の速さでAB, BC上を頂点Cに向 6SェS12のとき 4 動点と図形の面積 3 電 2 6くときの万ギ AAPQについて、 0SェS6のときは、 辺 APを底辺,線 分 BQを高さとみ 右の図のように、 AB=BC=12cm, ZABC=90°の直角 12cm か P! 二等辺三角形 ABC がある。点Pは頂 B、Q+ -12cm る。 点Aを出発し,毎秒 速さでBC上を頂点Cに向かって移動 みる。 する。この2点は, 点Pが点Qに追い ついたところで止まるものとする。 点P, Qがそれぞれ頂点A, Bを出発 してから,エ秒後の3点A, P, Qを結 んでできる△APQの面積をycm。 とす るとき, 次の問いに答えなさい。 ただし, 点P, Qがそれぞれ頂点 A, Bにあると きと,点Pが点Qに追いついたときは, リ=0 とする。 (1) 3秒後の△APQ の面積を求めなさい。 解 AP=2×3=6(cm), BQ=1×3=3(cm) (新潟) 点Pは辺 AB上 点Qは辺BC上 AAPQ=;×6×3=9(cm) 9cm? (2)次のO, のについて, yをェの式で表 しなさい。 0 0Sr%6のとき 解 AP=2rcm, BQ=rcm 2c cm P よって, y=×2.ェXz y=r° BTQ C Tcm リ=r° 2 6<z<12のとき 解 AB+BP=2zcm より, BP=2z-12(cm) 12cm よって、y=ラ×ロ ラ× セ-(2ェ-12)}×12 Ecm.) Q リ=-6r+72 C BTP (2c-12) cm リ=-6x+72 (3) AAPQの面積が 16cm となるのは はイ

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