Mathematics Senior High almost 2 yearsago この問題が分かりません 教えて欲しいです! 次の等比数列の初項から第n項までの和 Sm を求めよ。 22 (1) 1, 2, 22, 2, .... (3) 3, -6, 12, -24, ***** 1-2-2 2 2 2 (2)2, 332 33 Waiting Answers: 1
English Senior High almost 2 yearsago この( )に当てはまるものを教えて下さい🙏分かるものだけで構わないので助けてください😭お願いします。良かったら答えの意味も教えて下さい。 (1) My daughter will spend a few years in New York. Her main ( is to study Broadway musicals there. ) for going 1 behavior 2 reason 3 accident 4 subject (2) A: Did you ( ) Jane's new boyfriend? B: Yes, I was surprised that he is so handsome. 1 acquire propose 3 bring 4 notice (3) A: Does Japanese food suit your ( B: Yes, very much. I really love it. )? 1 lips 2 dish 3 taste 4 spirit (4) A: I think that this plan will be successful. B: I don't want to ( 1 argue 2 insist ) with you, but I'm sure it won't. 3 demand 4 hope (5) A: Where do you want to go tomorrow, Dean? B: How about the beach? The roads won't be too crowded if we leave ( ). 1 early 2 quickly 3 fast (6) Since the ( 4 speedy ) of China is so large, Chinese is spoken by more people than any other language. 1 people 2 population 3 number (7) A: I'm very sorry I have not written to you for so long. B: I'm sorry, too. I want to ( (8) (9) 1 save 2 introduce 4 nation ) to you for getting so angry. 3 apologize 4 understand ) to the crop. 3 harm 4 loss We hoped the typhoon would not do any ( 1 pain 2 accident A: What about your schedule for this week? B: It's very ( ). 1 tight 2 small 3 close 4 strict Waiting Answers: 1
Mathematics Senior High almost 2 yearsago 次の問題でまず青い線で何故t/2となるのか解説お願いします🙇♂️ 演習問題 150 a と 言, a + 君 と a - のなす角はともに60°で, は単位ベクト ルとする.このとき, a を求めよ. Solved Answers: 1
English Senior High almost 2 yearsago 不定詞の問題です。教えてください。 3 Put the words in the correct order. 1) Kenta 2) Mana 3) Meg 4) I am sorry the test results. (disappointed, be, seems, with, to) someone. (be, for, seemed, waiting, to) of the team. (captain, be, hopes, elected, to) your call. (have, missed, to) Solved Answers: 1
Mathematics Senior High almost 2 yearsago 102番の問題。解き方が分かりません。 判別式はどのような時に使えばいいのかも教えて下さると嬉しいです。 102 2次関数 y=x²-2(k-4)x+2kのグラフが x軸と異なる2点で交わるのは,実数がどの ような範囲にある場合か。 (ブラザー工業 改) y=x2-2c6-4)x+2k y=ax2+bx+cがx軸がと 2点で交わる <D=1400>ax=-belb-gde 判別式+200- XC= 29 D={-21k4}24.12k>O 103 -x2+2x-2はxのすべての実数値に対し て常に負であることを証明せよ。 (双日) hint y=-x2+2x-2のグラフで考える 4(1²-8k+16)-8>0 18k+16-2k70 k²-10k+1670 (k-8)(k-2)>0 ☆ k<2,8<k 104 2次関数 y=x2x+2のグラフと直線 上の説を Solved Answers: 1
English Senior High almost 2 yearsago 高校の教科書の問題です。今度テストに出るところなので答えを教えて欲しいです! Vocabulary 10 Compound nouns 1 Write a word to make three compound nouns. mail 1 business fire man 2 Write a compound noun from Exercise 1. ESSO 2 pop 3 rock 4 ache lights 2 1 gas station phones movie break 3 beans shop return 5 parking single 6 cut 5 6 brush salon for a headache gas 7 train 8 bus cook 9 text note 10 set glasses screen light cop jam 70 Unit 10 Our interactive world 7 8 3 Answer the questions using a compound noun. 1 When do people take aspirin? 2 If you want a recipe, where do you look? 3 Who delivers the mail to your house? 4 If you park in the wrong place, what might you get? 5 What should you put on your skin before you sunbathe? 6 What can you watch at the end of the day? 7 What must you switch on when you are driving at night? 8. Where can you get gas? Waiting for Answers Answers: 0
English Senior High almost 2 yearsago どれが正しいか教えて欲しいです! 18 7 Choose the best option. ) (8) ) (S) (各2点) (1) He tries to call or email his relatives abroad whenever he can to stay in ) with them. a. smile (2) My dog's tail to what I say. a. manage b. live c. touch d. alive Slas woy lliw olup ylimel jeon qoy of lisms n is moving from side to side. Perhaps he is trying to ( b. respond c. collect d. run Solved Answers: 0
Mathematics Senior High almost 2 yearsago 2枚目の写真の計算式なんですが、=-1になんでなるんですか??よく分からない質問で、すみません🙇♀️💦 例題 =4 して対 直線 x+2y-100 に関して, 点A(1, 2) と対称な点Bの座標を求め 点 2点A, B が,ある直線に関して対称である条件を考えてみよう。 (i)直線ABは直線にである垂直 (ii) 線分ABの は直線上にある 仲点M B 解 直線 x+2y-100を1とし, 点Bの 座標を (a, b) とする。 YA 直線lの傾きは 1/12 1 B(a,b) b-2 5 直線AB の傾きは a-1 一人 直線と直線 AB は垂直である A(1,2) から 0 (-)-2--1 すなわち b = 2a ① また、線分ABの中点(a+1, a+1 b+21 2 a+1 5 '+2・ b+2 6+10 2 2 -10=0 af すなわち α+26-15=0 ② 6-2 (-2) a = 1 a+b+2 ℗ (atl 2 は直線上にあるから 2 ① ② より a=3,6=6 したがって, 点Bの座標は (3, 6) (a) ■3 直線 4x-2y-30 に関して、点 A(A Solved Answers: 1
English Senior High almost 2 yearsago (4)の答えと解説を教えてください! (4)1( I a. enabled you ) to get a ticket for the rock concert. b. succeeded x give up -ing ・することを諦める c. gave up cier d. managed To ). 何とい (5) If you don't go to the ceremony, I won't, ( a. too b. also of geluge (C. either unswed. neither blow is b Ⓒ.ei Solved Answers: 1