算錯

基 雨 已知x-2為3x²+7x+k的因式,則: (1) k= ? (2) 請因式分解 3x²+7x+k。 J) 3x+13 解: X-2/3x²+2x+k 3X-67 (2) 13x+k 133426 Q:26 (x-²0 2) (32X+3)

求解

9.( A ) 質量 0.5 公斤的棒球滾進粗糙的 vt 圖如附 水平紅土場地,測得其 圖,由此可以推算出紅土場地的 摩擦力大小為多少牛頓? (A)0.5 (B)0.75 (C)1 (D)1.5。 速度(公尺/秒) 15k 130 Q10 20 75 日 時間(秒) 7.5x0.5

請問我這兩題有算對嗎？🙏

②如圖,四邊形 ABCD 為平行四邊形,艾美將A點摺 到 BC 上,再將它攤平,如果摺痕為 BE 且E點在AD B 上,AB=9,BC=15,∠D=80°,求: 9 (1)∠1。 (2)/2。 (3)DE 的長。 課 P185 隨堂 (1) 121 4/=80=2 22:41 = 40*(內错角同) (3) = 40° 如圖,平行四邊形ABCD 中,∠A的補角比∠B 的餘角 多32°,求∠D。 課 P185 隨堂 SLA+LB=190 22k=138 190-2A=90-LB+3228039 S2A+23:190 -1 2-1 A+ 213=42 017 18.0 -180 1₁ 1 LB=LP=180-69 = 11/² 711 180 2-69 15 169 24 9 B A: 111° E A DE = 15-9 = b 月 (3) A: 40° 40 6 A 80° C D

請問第11題 為什麼AC平方要用K-8呢？ 謝謝

吸管在杯內的長度 = 10²+24²=26(公分) 吸管全長=26+4=30(公分) 所求=30-24=6(公分) 2 ➡ ((k+2) ²+ (−3) ²) = {(k-8)²+(-3) 2) +10² 尼+4k+13=²-16k+173 20k 160 k=8 2 15-13 -X- √5 +√3 √√5-√3 √5-√3-√√5-√3 5+ 11 AB²=AC²+BC² 39 12 x=

一直有個疑問 反應前不是甲+乙變成丙+丁 那反應前這個詞 應該是配上甲+乙 反應後這個詞 應該是丁+戊 那為什麼甲乙丙丁戊加起來等於甲乙丙丁戊 反應前和反應後不是應該變一個次子嗎

甲+乙 成为丙+丁戊為陰化劑反應前後 物質「甲乙丙丁戊 質量不變 REEK 130 300016L 反應後「To AXIM 7 |4 X/Y#15277129

可以解釋一下解析的部分嗎，感謝各位😌

題題(1)有一等差數列的公差為4,第4項與第10項互為相反數,求其第9項。 已知一等差數列的末項為首項的13倍,反倒數第2項與有項的和等於第3 項與第6項的和,求第3項與第6項的比。 和 求第 2 解:

請幫我對答案 謝謝❗️

14.單字文法選擇卷 麻辣 年 卷 「班 27 1. There is no second way to win first prize. All you need is more (B) sweaters (C) problems (D) land singing last night, but I didn't know who she was. Her voice was 號 得分 姓名 Im (A) practice ad 2. I heard beautiful (A) anyone (B) everyone TI 3. Mr. Logan needs an excellent secretary u with everything in the USA. (C) someone (A) which (D) no one English is good enough to help him (B) whose (C) that (D) who 4. Nora: We need to hurry. The train is going to leave in five minutes. Tony: Don't worry. We are there. (B) perhaps (C) quite pasted the poster on the classroom door? Kim: I don't know. It's already there when I got here this morning. D (A) yet (B) 5. Ms. Liim: Who was the one (D) almost (B) repeat Lo (A) who (B) x (C) that (C) 6. I am sorry I didn't get your point. Would you please (D) which (A) prepare (C) answer what you just said? (m) © Jerry seldom has fast food, and (D) start (A) neither do I We eat a lot of fruit and vegetables. (B) neither has I (C) so do I (D) so has I (D) 8. This is the book I borrowed from the library. I just finished reading it. (A) what (B) who (C) whose (D) which (B) 9. Ms. Lee has told Sam many times, but he makes the same mistake again and again. (A) then (B) still (C) finally (D) over (D) 10. Uncle Joe's was the restaurant I usually had lunch when I studied in Taipei. (A) that (B) what (Q where (D) which ( 2.) 11. “Quiet" and "quite” look almost the same. It's not easy for some students to them right. (A) spell (B) dig (C) kick (D) wipe ( ( ) 12. I am sure Jack will like your idea about the trip to the UK. Just tell him. (A) who (B) whether (C) that (D) what (B13. I just that Mike lost his job, and I was so surprised. He didn't say anything when we had dinner last week. (D) kept (A) turned (C) learned (C) 14. Our math teacher always us to do a lot of homework. It's so tiring. (C) gets (D) studies (A) takes from her husband for two ( 0) 15. Nancy has to go on a business trip, so she will be months. (D) passed (A) parted V (B) made (B) asks (C) failed (B) marked

兩題求解

x.x2 + x,x: + x,x. + x,Xs = -2 X,X, + X,X: + X,X4 + X,X = -2 Ex10. 若xi, X., X, X., x, 皆為實數,且滿足{xxj + X, X. + X; X: + X X = -2, *4*, +X.X2 + X,X: +X X = -2 XsX, + XsX2 +X3X3 + X X 4 = -2 91 x,' + x,' + x;' + x,' + x, Zütik 13

第四，b 我要怎麼看他是要借複數還是單數的筆

B1- D BU As Co. 文法測驗:(每題10分,共100分) 1. We had a big dinner together after Dan home from work. (A) come (B) came (C) comes (D) coming 2. It Kate three hours to join the show. (A) paid (B) cost (C) spent (D) took 13. Jessie: Big Bang's songs are great. Irene: Yes, and there will be a new this weekend. (A) it (B) them (C) one (D) ones 14. Jessie: Those are my new pencils. Irene: Can I borrow from you? (A) it (B) them (C) one (D) ones I don't like this skirt. Is there ? (A) another (B) other (C) the other (D) the others 16. I have two favorite singers. One is Adele; is Katy Perry (A) another ordine (C) the other (D) others (B) other

求解這兩題..🥺🥺

- - ||| 3 NO 且2x-y+3z=93,則y=? 11. 若 5 基 (A) 3 (C) 15 (B) 9 (D) 24 2. 小靖要製作一個草莓蛋糕,按照食譜上的作法,每個蛋糕要用于公斤的奶油 子公斤的麵粉、士公斤的草莓。若他想照著這份食譜製作出一個總質量為2.6 . 公斤的蛋糕,則他 要用幾公斤的草莓?x0) ( (A) 0.6 3r32.b ( (B) 0.8 3 (C) 1.2 L: 6:4.3 9 宁 ( (D) 1.4 . 2 G+ T