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応用 例題 2 解答 練習 24 方程式 10g3x+logs (x-8)=2 を解け。 考え方 まず, 10g3xと10g(x-8) の真数がともに正であるxの値の範 囲を求める。また,次の対数の性質を用いる。 M > 0, N > 0 のとき 10gaM+10ga N = loga MN 解答 真数は正であるから すなわち 方程式を変形すると よって 式を整理すると ① より x>0 かつx-8>0 x>8 次の方程式を解け。 (1) 10g4x+10g4(x-6)=2 log3x(x-8)=2 x(x-8)=32 x2-8x-9=0 (x+1)(x-9)=0 x=9 応用 不等式 10g2(2-x)≧10gzx を解け。 例題 考え方 3 練習 次の不等式を解け。 25 ...... (1) 10g÷(3-2x)≦10g/x 2-x≧x ①,②の共通範囲を求めて すなわち まず, log2 (2-x) とlog2xの真数がともに正であるxの値の範 囲を求める。 真数は正であるから 2-x>0 かつ x>0 すなわち 0<x<2 ① 2は1より大きいから, 10g (2-x)≧ 10gzx より ② 167 x= -1 は ①を満たさない。 (2) log₂(x+5)+log₂ (x−2) = 3 x≤1 0< x≤1 (2) 2log: (2-x) < log3(x+4) 第5章 指数関数と対数関数

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46. My car was stolen ( Ⓒ during 47. Why are some people allergic to eggs, peanuts or animal fur, ( because 2 while 3 so 4 as if ) we were having dinner in the restaurant. 2 until 3 while 4 between 50. Cities can grow old ( as good as ☐ 51. ( □ 48. ( ) scientists know why earthquakes happen, they are still not able to predict them. 1 While 2 Whether 3 So 4 What <亜細亜大> 116 □ 49. ( ) more aware of our unique place on Earth, we develop a deeper sense of responsibility toward other species. 117 As we become 3 If we became 1 As ) people do. 2 Since we became We become 4 likely ) he was born in America, he speaks English perfectly. Though 3 When just as 3 alike □ 52. ( ) we were going out, it started to rain. In case 2 Unless ) others are not? 116 <日本大〉 3 As long as 116 〈南山大 > 4 Before 4 Just as <神奈川大 > 117 < 東京電機大 > 117 <相模女子大〉 117 〈札幌大〉

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□ 22. ( ) begun considering the solution when an aid came in. As soon as the men had 2 Before the men had 3 Scarcely had the men 4 Soon had the men 23. ( ) human beings started to produce what they needed to survive, they set themselves apart from animals. As soon as 33 No more than 2 The reason why 4 As it is 24. I knew something was wrong with the engine ( 2 even if O although 3 however ☐ 26. 25. ( ) she has gone to Paris on business, Ms. Brown is not here now. 1 Since 3 Though 2 Before 4 When ) I tried to start the car. 4 the moment ) he is poor. 27. We should not look down on a person ( 1 because 2 why 3 and ) it was the end of the month, the bank was very crowded with customers. 3 While Because 2 Because of 4 During □28. ( ) that you are old enough, you must do it yourself. Because Now 3 Though but 109 <日本大〉 When 109 〈関西外国語大 > 109 <近畿大 > 110 <城西大〉 110 <城西大 > 110 <松山大〉 110 〈工学院大 >

ここでのサブジェクトってどういう意味なんでしょうか？

136+ She was known Chiefly to her subjects by her presence at public events and televised Christmas messages, which often emphasized the values of duty and dialogue ■放映する おば 2 対話 君 She became the longest-serving monarch in British history in 2015, surpassing her ~を抜いて great-great-grandmother Queen Victoria. ひいひいおばあちゃん 215

この問題についてです。 動画の解説を見たところ、右に引く力から、摩擦力を、引いてなかったのですがなぜそのような処理がいらないのでしょうか？

運動と力 26 静止摩擦力 練習 図のように水平で粗い床面上に10[kg]の物体が 置かれている。 この物体に水平方向に大きさの 力で引いた。 重力加速度の大きさを9.8 [m/s²] として次の問いに答えよ。 (2) Fを徐々に大きくしたところ、 F = 49 [N] で物体が 動き出した。 物体と床の間の静止摩擦係数μを求めよ。 N Img F 粗い床面

中3のニューホライズン、p47の問題です。 この答えは、C→D→A→Bなのか、C→B→D→A なのかどちらが正しいですか？教えて下さい

So .... First,... など、話の流れを示す語に 気をつけよう。 p.155 Word Room 4 Let's Try 「部活動は中学生にとってよい点がたくさんある」という主題のパラグラフを4文で書くことになりました。 A~Dの文を並べかえて、 正しい構成のパラグラフにしましょう。 ( Macko A Second, they can make friends with students in different years. ③ So it's good for students to join club activities. ©Club activities have many good points for junior high school students. ◎First, students can learn new things through their club activities. forty-s

このかっこ2番を教えて頂きたいです。 回答は2枚目にあります、

77. 元素の含有量と原子量次の各問いに有効数字2桁で答えよ。 (1) 次の各物質について, ( 内の元素の質量パーセント [%] を求めよ。 (ア) 二酸化硫黄 SO2 (S) (イ) グルコース C6H1206 (C) (2) ある金属Mの酸化物 MO2 17.4gを還元すると, Mの単体が11.0g得られた。 属Mの原子量を求めよ。 LELS H酸 ら mo (

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htu たんです 0 いてはど 2 # 2 P 49 ()内に入る適切な語を書きましょう。 1"( ) you ( 2 "What do you want to do today? Play a game?" “I ( movie ( ) play a game." P 57 ( )内の語句を並べ替えて、会話を完成させましょう。 1 "Where (held / the rock concert / was )?" "It was held in the concert hall." ) a cup of coffee?" "Yes, please." 2 "My house (being / painted / is) now." "When will it be finished?” )( 3 "Excuse me, cell phones (here/ used / be / cannot)." "I'm sorry." #P 6 7 4 "Her second novel (published / be /is/ to / going) soon." "I can't wait to read it." 5 "This song (played / been / at / has ) lots of weddings." "It is so romantic." 2 ( )内の語句を並べ替えて、 英文を完成させましょう。 1 It is (for us / important / study / to) history. With this knowledge, we can understand world news more deeply. 2 Kate got up at three (on TV / the soccer game / to / watch ). I missed the 4 Are you ) watch a 3 My parents (go / let / me / won't ) abroad. I want to be independent of them. serious? (allow / can't/I/ to /you) do such a terrible thing. 5 You have a toothache. You should (a dentist / check/have/ your teeth). game. 6 We are so grateful for all your help. We would (accept / like / this gift / to /you). 7 It was nice (of / say / "Thank you" / to /you) to your mother. I guess she's happy.

この英文の中でのbutは何を表しているのですか？ またin whichは関係副詞だと思うのですが、これを書き換えるならどれになるんでしょう？（where when whyなどありますが…） それと関係副詞に直す前の文が何だったかも教えていただけると嬉しいです。

Queen Elizabeth II dies aged 96 [ ] +0 VZA (Financial Times) -- Queen Elizabeth II Britain's longest-serving monarch, has died 宮慎 反 君主 完了 残っている leaving her people in mourning but reflecting on a life of duty in which she bound the country together through 70 years of momentous change. (人)の死を悼んだが s 束ねる 11 kingham Palace at 6:30 p.m. on