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English Senior High

あってますか? 間違ってたら教えてくださいm(*_ _)m

In recent years, 近年 scientists have discovered 科学者たちは発見しました that many dinosaurs had feathers like birds 多くの恐竜は鳥のように羽を持っていたことを instead of scales. うろこのかわりに Some believe 信じる (科学者もいます that birds are descended from dinosaurs. 鳥が恐竜の子孫だと Unfortunately, 残念なことに dinosaur feathers pressed flat into rock don't provide enough information about their structure. 岩の中に平らに押しつぶされた恐竜の羽毛からは それらの構造について十分な情報を得ることはでき ません But this new fossil in amber しかし, 琥珀の中のこの新しい化石は can offer much more. より多くの情報) を与えてくれます Amber protected the fossil 琥珀が化石を守った from chemicals and the weather, 化学物質や天候から so we can see its finest details in 3-D. なので私たちは最も細かなところまで3次元で見るこ とができるのです There are limits 限りはあります to what this new find この新しい発見で〜ことには can reveal about feathered dinosaurs. 羽毛を持った恐竜について明らかにできる But the tiny fossil may offer しかし, その小さい化石は提供するかもしれません rare view a and of the structure めったに見られない恐竜の羽毛の構造や組織を organization of dinosaur feathers and help us understand the evolution of そして恐竜の進化を理解する助けになる dinosaurs.

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Mathematics Senior High

数A (ii)のところの、「選んだ4つの数の並べ方は、、、、」というところで、なぜ3!分の4!が出てくるのでしょうか?解説がこれ以上書いてないので、はてなの永遠ループです。お願いします🙇‍♀️🙏

1+5 (185) 181 44,4,4,5,5566,7の10個の数から4個を使って4桁の数を作るとき, (1) 全部で何個の整数ができるかな (2) 9の倍数は何個できるか. (1) (i) 4個の数がすべて同じ場合 {〇 いないよう◯に入る数は4のみだから, 〇 〇, 0} 通り 4444の1通りのみ () 4個中3個の数が同じ場合 {0, ◯に入る数は2通り 0, 0, } の行 は4か5日(日) 4通り、△に入る数は○以外の3通り ここで、1が5 △は○以外のどれか 4! とする。選んだ4つの数の並べ方は, -=4 (通り) 同じものを含む順列 3! ( 5 がしたがって, 2×3×4=24 (通り) (Ⅱ) 4個中同じ数が2個,2個の場合 {O, O, A, A} ○ △に入る数は, 3C2=3 (通り) 選んだ4つの数の並べ方は, 【4,5,6の3つのうちから、○ と△に入る2つを選ぶ. 4! 2!2! -=6(通り) したがって 3×6=18 (通り) (iv) 4個中2個の数が同じで、残りは違う数の場合 {0, 0, △, □} に入る数は, 3C1=3(通り) 4,5,6の3つのうちから、○ に入る1つを選ぶ. △, 口に入る数は、 3C2=3(通り) 0 PARA CE 4! 選んだ4つの数の並べ方は, =12 (通り) ○○に入った数以外の3つから 2つを選ぶ. 2! したがって, 3×3×12=108 (通り) (V)4個の数がすべて違う場合 {0, , 口, x} 数の選び方は1通り 4つの数の並べ方は, 4!= 24 (通り) れる ! 385 よって, (i)~(v)より, I.S.E 1000 1+24+18+108+24=175 (15) 2010 201

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English Senior High

助けてください。どれが当てはまるか分かりません💦

B. Complete the paragraph with items from the box. Two items are extra. コメント 期待した FAKT media neighboring a actually commented potentially riddle expected significant かなりの made the headlines spectacularly worship visible ALLES tim tj 京料 all Archaeologists in England thought they had made an amazing discovery in July 2003, when tourists on a beach found ancient carvings on a large block of stone. The archaeologists believed that the discovery of the stone, which had been imported from Norway in the 1980s and used to make a wall, was The carvings of two snakes, a dragon, and other Experts translated the stone to say, (1) very (2) in the local (4) shapes (3) "This stone is for people who celebrate with fire." of the However, two months later, the archaeologists were surprised when the (5) carvings was solved by a fifty-year-old local builder, Barry Luxton. The man; who had seen a photograph in a newspaper, told them that he was (6) the one who had made the shapes - in 1995! Luxton said that over a period of three days he had made the carvings for a celebration on a beach that was going to be held by a group of druids people who nature. However, the block did not end up being moved to the other beach and was eventually covered by sand. Recent bad weather blew the sand away, making the carvings (9) again. Luxton was surprised; he really never (10) that his (7) (8) work would become so famous. follows may twen ne rac of th

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