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情報:IT 高校生

高校一年生の情報で待ち行列の問題です。この数字になる求め方を教えてください‼︎

②2 待ち行列 次の文章を読み、問いに答えよ。 喫茶店Sでは,お客さんはレジでドリンクを注文した後,受渡場所まで移 動してドリンクができあがるのを待つというシステムをとっている。オーナー のWさんは最近受渡場所が混雑していることに気づき,最近の売上データを 参考に混雑状況のシミュレーションを行うこととした。以下が売上データを精 査した結果である。 <精査結果 > お客さんの到着間隔は0分~6分の間である。 ・ レジ担当は1人であり, レジでの注文と精算完了までに1分かかる。 . 調理担当は1人であり, ドリンクの調理時間は1分~5分である。また, 注文時刻と同時にドリンクをつくりはじめるが,先のドリンクをつくり終え るまで,次のドリンクをつくりはじめることはできない。 ・お客さんは注文時刻の1分後に受渡場所に移動し、商品の受渡を待つ。 待ち 時間は「受渡時刻 (注文時刻+1)」 で求めるものとする。 AJRATERE この結果より, ある日の開店からの10人分のデータをシミュレーションす ると,下表のようにまとめることができた。 客 到着間隔 到着時刻 注文時刻 1 2 3 st 4 5 6 7 8 9 10 2 4 3 6 1 0 2 5 0 0 2 6 0 2 6 16 17 18 23 調理時間 受渡時刻 2 2 5 7 1 8 2 5 1 3 2 2 2 待ち時間 1 4 1 Bol (1) 4人目以降の到着時刻 注文時刻・受渡時刻・待ち時間を表に記入せよ。 (2) 10人のお客さんの平均待ち時間を答えよ。 (3) このシミュレーションの結果,同時にドリンクの受けとりを待っているお 客さんの最大人数は何人と考えられるか答えよ。 [計算スペース] (1) (2) (3)

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生物 高校生

生物の食物連鎖とかの問題だと思うんですけど誰かわかる方いますか??? 英語すみません💦

hhmi Biolnteractive Some Animals Are More Equal than Others: Trophic Cascades and Keystone Species Mean Leaf Area per Plant Over 18 Months without beetle with beetle Leaf Area per Plant (cm²) Control Ecology 2400 2200 2000 1800 1600 1400 1200 1000 800 Experimental 0 T 2 www.BioInteractive.org 8 10 12 14 16 Months After Start of Experiment 4 6 Refer to the figure to answer questions 12 through 17. 12. For both the plots with the beetles added and the control plots, state the mean tree leaf area per plot that the scientists recorded after running the experiment for 18 months. The mean tree leaf area per plot that the Scientist recorded after running the experiment for 18 months wit the beetles added is 1.7m², S 2.2m² 13. Compare the trends in mean tree leaf area per plot for both the plots with the beetles added and the control plots over the 18 months of the experiment. The area of the control plat for thinoceros beetles has d has increased at a nearly constant rate, the other is a gradua decrease at first, then a sudden decrease, and finally a dradua 18 Figure 2. Mean leaf area per tree. Initial measurements were taken before (0 to 2 months) and after (7 to 18 months) beetles were added to 40 of 80 plants. The light gray round markers represent measurements taken of the control plots, to which beetles were not added. The black square markers represent measurements taken of the experimental plots, to which beetles were added. Measurements were made on all leaves to calculate the mean leaf area per plant. Error bars represent standard error of the mean. 14. Draw two diagrams that show the food chains for both the experimental and control plots. Include increase. interactions among predatory beetles (if present), ants, caterpillars, and piper plants. Revised January 2018 Page 4 of 5

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英語 高校生

九州大学英語2019年の英作文の添削をお願いします🙇‍♀️ 大問4が要約と英作文、5が和文英訳です!🙇‍♀️🙇‍♀️🙇‍♀️

〔4〕 九州大-理系前期 Read the following newspaper article and follow the instructions below. (36) 16 2019年度 英語 in Engligi taul" According to the Kanagawa Prefectural Police Station, a 20-year-old female university student caused a traffic death. The student was riding on a power- She moved off from an assisted bicycle when the accident happened. intersection and started riding on the sidewalk. At that moment, a 77-year-old lady was walking on the sidewalk and moved toward the bicyclist. The student hit the lady. The collision caused the lady to fall and strike her head. She was transported to hospital, but died of her injuries two days later. At the time of the incident, the student was apparently holding a smartphone in her left hand and a drink in her right while steering the power- assisted bike. Moreover, she had an earphone in her left ear. Therefore, police arrested the student for breaking the new law and riding recklessly. Police are investigating whether the student noticed that the old lady was walking toward her. They suspect that she was not paying sufficient attention because she was operating her smartphone right up until the collision. Her court appearance date has not been decided yet. The Mainichi, December 16, 2017 Instructions: Write two well-developed paragraphs in English. In the first paragraph, summarize the main points of the newspaper article above in lo approximately 100 words. Use different vocabulary and sentence structure from the original passage as much as possible. In the second paragraph, write your opinion about what should be done to reduce accidents like this in approximately 50 words. hosidinlong unich lor, condadnoah

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英語 高校生

九州大学英語2019年の英作文の添削をお願いします🙇‍♀️ 大問4が要約と英作文、5が和文英訳です!🙇‍♀️🙇‍♀️🙇‍♀️

〔4〕 九州大-理系前期 Read the following newspaper article and follow the instructions below. (36) 16 2019年度 英語 in Engligi taul" According to the Kanagawa Prefectural Police Station, a 20-year-old female university student caused a traffic death. The student was riding on a power- She moved off from an assisted bicycle when the accident happened. intersection and started riding on the sidewalk. At that moment, a 77-year-old lady was walking on the sidewalk and moved toward the bicyclist. The student hit the lady. The collision caused the lady to fall and strike her head. She was transported to hospital, but died of her injuries two days later. At the time of the incident, the student was apparently holding a smartphone in her left hand and a drink in her right while steering the power- assisted bike. Moreover, she had an earphone in her left ear. Therefore, police arrested the student for breaking the new law and riding recklessly. Police are investigating whether the student noticed that the old lady was walking toward her. They suspect that she was not paying sufficient attention because she was operating her smartphone right up until the collision. Her court appearance date has not been decided yet. The Mainichi, December 16, 2017 Instructions: Write two well-developed paragraphs in English. In the first paragraph, summarize the main points of the newspaper article above in lo approximately 100 words. Use different vocabulary and sentence structure from the original passage as much as possible. In the second paragraph, write your opinion about what should be done to reduce accidents like this in approximately 50 words. hosidinlong unich lor, condadnoah

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