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Mathematics Senior High

(3)の質問です。 2200=〜(k≧5)までは分かりました。 そこからk=5を試せませんでした。どう試そうと思うのですか? またk^3の位に注目して〜のところでは、例えばk=6のとき、5k^3は2200より小さくなると思うのですが、なぜこの不等式が成り立つのですか? ... Read More

第2問~第4問は,いずれか2問を選択し、 解答しなさい。 第3問 (選択問題(配点20) 自然数Nを7進法で表すと3桁の数 abc (7) となり, 8進法で表すと3桁の数 cba(s) になるとする。 (1) このような自然数Nを求めよう。 a, b, c について が成り立つ。 変形すると アイla-b- アイ b= a= と オ ウエ c=0 ウエ の最大公約数は カキ a- クケ となる。よって, 条件を満たす α, b,c は b= サ である。 したがって,Nを10進法で表すと, N = C= オ スセソ であるから、この等式を である。 (数学Ⅰ・数学A 第3問は次ページに続く。 (2) Nを5進法で表すと, タチツテ である。 (5) (3) 10N を進法で表すと, 4230(k) となった。 このとき, ト k= となる。 (4) 10Nの正の約数は全部でナニ個ある。 これらのうち, 2の倍数はヌネ 個, 4の倍数はノハ 個 8の倍数は ヒ 1個ある。 したがって10N のすべての正の約数の積を2進法で表すと,末尾には 0 が連続 して フへ 個並ぶ。 LE

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English Senior High

高3 英語表現 空所補充の問題です。 合っているかどうかの確認をお願いしたいです。 また、(5)の文章はどこまでが主語でどこが動詞になるのでしょうか?日本語訳も一緒に頂きたいです。 いろいろ書き込みしてしまっていますがすみません。

2 次の英文の空所に入るもっとも適切な語を選び, 番号で答えなさい。 Although animals do not communicate in the same way that humans do, many have their own special languages, which they use for different purposes. For example, animals ) mates, 仲間 目的 "talk" to (1)( ③ ) relationships with other animals: They (2) O scare away their enemies, mark their territories, and identify themselves. Many animals 領地 おです use several different communication techniques. Two common ones are auditory and 聴覚の tactile communication. 触覚の コヨーテ Auditory communication refers to the (3)( ) that animals make. Coyotes, for example, are very noisy. They use barks, yips, and howls/to mark their territory and to (4) ( 4 ) other coyotes know where they are. 他のコヨーテにどこにいるか知らせるために、 8 Tactile communication (5)( ) using touch to show power or to form connections 173 with others. Did you ever see a dog push another dog over on its back to show who is ) cheeks with other cats. boss? Another example is the friendly cat that (6) 6 These are just a few examples of how animals communicate. attract 引きつける 5 means 2 break rubs establish 築く sounds Olet tools

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English Senior High

答え教えてください☺︎♪

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