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English Senior High

あっているかどうか教えてください。

① 正しい英文になるように,空所に入れるのに適切な語句をa)~d) から選び,記号で答えなさい。 1. ( d ) tennis is a lot of fun. AJABSTITO DA Fact A a) Play b) Played b d) Playing driving 2. My father's job is ( a) drive 3. My sister is good at ( a) ride b) rode 4. Sam is looking forward ( a) travel b) traveled d c) Plays ) a bus, to n C c) drove ) a unicycle. *unicycle: - c) to ride ) abroad. enblietoturolo to travel 1185 VE d) driven betzensini] ne Fact A FERNA T Fact A riding boqqote \of] 8 Fact C I should and a new hoopy d) to traveling \[\Inso \6\enigsmi \ tuontiw | A +++ABSTRETJSE ② 正しい英文になるように, [ ]内から適切な語句を選びなさい。 1. Rika enjoys [talking to talk] with her friends. Tresotho awers er to \fon \I\flet gniwor\ bemeras 2. I want [ watching /to watch] the TV series this evening. JE &TOR: 3. He promised studying to study ] math every day. 4. Cindy finished [doing to do ] her homework last night. 5. I gave up taking / to take ] a walk because of the heavy snow. elcem netts gied pritse\efsewe \I\fonniso 6. Remember [calling to call me when you arrive at Shinjuku Station. 7. I remember lending to lend ] James a comic book. I wonder when he will return it to me. 8. I tried [going)/ to go ] into the forest, and I lost my way in the middle of it. siiW2) USA hoirlanar A Fact B Fact B Fact B Fact B Fact B Fact B Fact B Fact B

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Mathematics Senior High

(2)が最初からわからないです。どうやって場合分けしているのか教えてくださいm(_ _)m

三角形の成立条件 例題124 **** 3辺の長さが3,4,xである三角形について,次の問いに答えよ. (1) xのとり得る値の範囲を求めよ. (2) この三角形が鋭角三角形となるようなxの値の範囲を求めよ. 考え方 (1) たとえば, 3辺の長さが3, 4,9では、 9 三角形ができるためには、a+b>c が成り立つ必要がある. (2)鋭角三角形となるのは,最大の角が鋭角のときである. 最長となる辺の対角が最大となるので, 4とxを比較する (辺と角の大小関係は p.425 参照) 54 16 解答(1)3辺の長さが3,4,xの三角形が存在する条件は, 3+4>x x+3>4 x+4>3 Focus (2) (i) 1<x<4 のとき, 最大の角は長さが4の辺の対 角である. それをαとすると, α <90°となるため には, COS a= cos B= x2+32-42 2 x 3 これより, 1<x<7<b>0, c>0 ** 大きる のであるはずだが、こ れらは,三角形の成 立条件の3つの式か ら導かれる.(次ペ レージの Column 参照) 最大角をみるために は、 場合分けが必要 一般に ->0 x<-√7,√7<x x2+32-42>0 32+42x2 2.3.4 1518 これより。 これと 1<x<4 より, √7<x<4 (ii) 4≦x<7のとき, 最大の角は長さがxの辺の対象 角である. それをβとすると, β <90°となるため には. JEYJS ->0 32 +42-x20 これより. -5<x<5 これと 4≦x< 7 より, 4≦x<5 よって, (i),(ii)より, √7<x<5 a SH05 A C a,b,c を3辺の長 さとするなら a>0, Aが鋭角 ⇔ b2+c^²>d² を用いてもよい。

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English Senior High

この問題の答えを教えて頂きたいです🙇‍♀️🙇‍♀️

1. 次の英文を読んで (1) ~ (5) の問いに答えなさい。 Have you ever dreamed of traveling in space? I have thought of going into space as an astronaut so many times. Traveling beyond the earth is always a great dream and hope for humanity. But as everyone knows, it is not easy to be an astronaut. There are many people who want to try to get into space flight programs all around the world. So first, you have to pass extremely difficult selection processes to even participate in the training and testing used to prepare potential astronauts for operating in and living F ) in space. The training itself is so hard that it is very difficult (A) complete. ( those that pass the training, only a few can actually experience the trip into space. Every time I see the news about the manned space flights on TV, it does sound like something impossible for a regular person like me. (G ), there was a recent event that really surprised me in September 2021. They 2completed said that ("Crew Dragon" 3the 3 day-mission 5called) the spacecraft successfully. As a surprise, this mission was an "All- Civilian" flight. The four people in the Crew Dragon were not professional astronauts from other space agency programs. A billionaire booked the Crew Dragon capsule last year and picked three normal people to ride (B) him. It was the VERY first totally private mission to orbit. The stories of how the people had been chosen and how the trip succeeded were not only amazing but also very heart warming. Watching this news reminded me (C) the excellent idea about Space elevators. This is a promising scientific technology that could take us into space much more (K) in the future. ( H ) JSEA (Japan Space Elevator Association), the concept of a Space elevator would make reaching orbit in space easier and faster (D) using Centrifugal force and Earth's gravity instead of rockets. Engineers estimate it requires a cable that is about 100,000km long and more than 100 times as strong as steel. So of course, it sounds like a challenging development. Also, the space elevator would require much less energy to lift cargo and people into orbit and be significantly more eco-friendly. As they continue to work on advancing technology, the space elevator may become a reality (E) we know it. With the space elevator, traveling into space would no longer be an impossible dream for us, ordinary people. Just talking about it, I get totally excited and can't help hoping to experience the situation of looking down on the earth from the space one day. (E)に入る前置詞として適切なものを①から⑤か (1) 本文中の(A) らそれぞれ選びなさい。 Dwith 2to 3before 4 by 5 of P.1

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