学年

質問の種類

英語 高校生

この問題の答えを教えてください

GU amibling Glaciers Glaciers are very large sheets of snow and ice that pile up on land for long periods of time. They are the second largest source of water on Earth after the oceans. There are two main types of glaciers. The first is alpine glaciers, which are found in the mountains. The other is continental glaciers, which cover continents. Glaciers move over time. They slowly flow downhill. Some glaciers are getting bigger, but others are shrinking. Even though they are made of snow and ice, glaciers are very powerful. They change mountain valleys from a "V" shape to a "U" shape by pushing great amounts of rock and cap. earth. When a glacier forms on top of a mountain, it is called an ice A narrow strip of ice on a beach in the Arctic is called an ice foot. 1 Which of the sentences below best expresses the essential information 2014- in the first highlighted sentence in the passage? (A) Glaciers are large and long-lasting piles of snow and ice that form on land. (B) Glaciers are very big areas of snow and ice that never move. (C) Glaciers are the biggest accumulations of snow and ice on Earth. (D) Glaciers are large sheets of snow and ice, so they can be a water source. 2 Which of the sentences below best expresses the essential information in the second highlighted sentence in the passage? (A) Glaciers move downhill and change into mountain valleys. (B) The power of glaciers changes the shape of mountain valleys. (C) The large amounts of rock in glaciers change mountain valleys. (D) Glaciers are more powerful than mountain valleys. Juulanu ans siautoim What are the two main types of glaciers? mis doww, 216ioniM

回答募集中 回答数: 0
数学 高校生

③のグラフの(1,2)を除いた部分と②のグラフが異なる2点で交わる⇔異なる4個の解を持つ となるのはどうしてですか…?

第3章 図形と計量 Check 例題119 三角比の2次方程式の解の個数 0°180°とする.0の方程式 2cos2+sin0+α-3=0.••••• 1 に 0810 09 ついて, (1) ① が解をもつための定数aの値の範囲を求めよ. (2) ①が異なる4個の解をもつときの定数aの値の範囲を求めよ. ROCROS 考え方 例題 104 (p.178) の関連問題 (1) sin0=t とおくと, ① は, 2(1-t)+t+a-3=0 より 直線 y=a と放物線 y=2t-t+1 (0≦t≦1) の共有点をみるとよい。 (20°180°のとき sin0=t (0≦t<1) となる0は1つのに対して2個あるこ とに注意する. (sin0=t=1のときは0=90°の1つのみ) sin20+cos20=1 より, 解答 (1) sin0=t とおくと, ① は, 2(1-t)+t+a-3=0 12121- より、 a=2t2-t+1...①′ cos20=1-sin' 310 0°≧0≦180°のとき,0≦sin0≦1より、0≦t≦1 1.41.5 [y=a とおくと, 定数 αを分離する. したがって, |y=2t²_t+1 3 ②と③のグラフが、0≦t≦1 YA ①'の解は②と③のグ ラフの共有点の座標 において共有点をもつ. 2 ③より, y=2t-t+1 y=a t=1 のときy=2 = 2(t-1) ²² t=0 のときy=1 って、 右の図より, 7 j 1/≦a ≦a≦2 8 sin0=1 を満たす0は 0=90°の1つのみ (20°≧0≦180°のとき, YA -1 0 0≦t < 1 において、 ②と ③が異なる2点で交わる ⇔ ①' が Ost<1に 異なる2個の解をもつ ⇔①が異なる4個の 解日をもつ Focus + 7 8 sink (0≦x<1) を満た すの値は2個存在する. したがって, 条件を満た すとき ③のグラフの 点 (1,2)を除いた部分と ②のグラフが異なる2点で 交わる. よって, (1)の図より, 7 <a≦1 8 7 8 -1 O 1 1 | 1 1 1 L 11 42 YA 0₂ I L 1 1 1 I 150600 y=k 081 XC 201 1 ****

解決済み 回答数: 1
英語 高校生

enormously を辞書で調べると副詞と出て来ますが、この写真の文だと importantにかかってるように見えます。 あっ、形容詞を修飾してるから別におかしくないんですかね…?

Come to thinkl ofút) as a more or less automatic and natural act (like breathing ○状的詞 考え その事酒に、 or blinking. ) Of course, if we give the matter any thought at all> we must b/c realize that ,o,[language / there / automatic / is/ nothing / about].」 Children There 1s tgut Langirag e matic 5 must be taught their native language, and the necessary training takes a long 決要とあ3 に的に)受止継ゲ43 8.g 技街 time. Language is not something (that is inherited; it is an art that can be 事的に techniqu) passed on from one generation to the next ónly by intensive education) 通が 非常に ID is difficult [to realize the enormously important role (that language b/c. ( 3 )in our social behavior】 What_a different place the world would b e. Shad no one invented languagé!>There would of course be no books a こ け no one inad invented へ 手段 newspapers, tor writing or other means of communication(by words)would no というのも理由) exist. All of history would disappearforlwere it not for language there woul というのも理合) be no way of re-creating past experiences and communicating them to othersE V S 考過程 (of sharing in the mental processes of our fellowmen) Indeed, we couldn't thir もま張する。 at all. Many psychologists maintain that thought itself requires the use tv)

解決済み 回答数: 1