請問這要怎麼算

a10值有多少種可能? (A) 10 (B) 11 BO 157147 14個1.27 2. 28 safing challenges 9. 將30顆乒乓球分裝到甲、乙、丙三個盒子中,規定不能有空盒,且甲、乙兩個 盒子裡都須裝奇數顆球,則所有符合條件的分裝方法有幾種? (A) 105 (B) 120 (C) 153 (D) 378 奇奇偶 =1050 (C) P2 (D) 20 A10 同時擲三顆不公正的骰子,若已知其點數 x,y,z 為偶數的機率依序為 1.2 23 , ,

想問下面兩題 需要完整解答方式跟流程．

*甲乙2人比赛下棋(沒有和局)約定好:若甲先獲得 三勝則算甲贏,但在甲三勝前已能連續2勝則算乙 贏,若第一局是甲獲勝,間接下来比賽的勝負過程有7種 問:why. 甲 甲 甲 甲 乙 How to 解? *從1~20的20個整數中,取出了個相異的數a.b.c,使其成 等差數列,且acbcc.則序組(a.b.cv)取法有40種. (1.2.3)~(18.19.20)→18組 (1.3.5) ~ (16.18.20) → 16組 (1.4.1)~(14.17.20) →14組 (1.10.19) (2.11.20) → 2 組 P₂ = than i : 一定要all列出? 有無更快 soln.

求龍騰all in one 第二冊第4課解答🙏🥲

求all in one第四冊的解答

求解🙏

(41~43) Notice Stay Quiet or Keep Your Voice Down in the Back Yard: I've gotten several complaints from neighbors about the loud noise that was made when you were washing pots, dishes, and clothes during break time. Though you are only staying here for the summer, I don't want people to think that players from Sunny Basketball Team are just a group of teenagers without discipline. 41. You may have heard that yesterday one of your team members came down with a high fever and was sent to the hospital after she was bitten by a cat. - Don't Feed Wild Cats or Dogs: Feeding them only draws more. 42. set for : You are here for training, not for summer vacation. You can enjoy each break I you, but be prepared for practices and show up on time at 7 a.m. and 2 p.m. every day. 43. I will drop you from the team. If you don't wear your full uniform to the training more than once, I will also drop you. The rule starts from today. -Head Coach of Sunny Basketball Team | complaint 抱怨 discipline 紀律 wild 野生的 coach教練 41. (A) They have no place to stay, and we need to help them. (B) They make the camp not only dirty but also dangerous. (C) They make us full of joy every time we see them. (D) They are sick and need doctors to treat them. 42. (A) Wash Your Clothes All the Time (B) Get Enough Rest Every Day (C) Make Sure Your Uniform Is Clean (D) Be on Time for Every Training Day 43. (A) When the training is over (B) If there is not any training (C) When you finish all the training (D) If you're late for training more than once

不會

The store 1. Jenny: Have you Alice: No, I 2. Roger: David: mopped (mop) the floor? have two hours. 3. Linda: Has the rain stopped Kevin: Yes, it's (a) 4. Teddy 5. Nancy: Are the dogs Peter: No, they aren't. 6. Bill 7. It takes more has Tom played the new video game? ? stopped. (wake) up by the phone call this morning. washed (wash) by Betty every week? (not finish) making the sky lantern yet. He's still working on it. (much) time to write a poem than read one. 8. Jimmy: Where did you meet Sara last time? (meet) her at the airport. We Cathy: I years. 9. Watching the movies on TV costs 10. Making snowmen is as interested 3 (not see) each other for (little) than going to the movies. (interest) as throwing snowballs.

請問這題a為何用DTFT再逆轉換算出來y[n]=0與解答用z轉換結果不同

2.5. A causal linear time-invariant system is described by the difference equation y[n]-5y[n-1]+6y[n = 2] = 2x[n— 1]. (a) Determine the homogeneous response of the system, i.e., the possible outputs if x[n] = 0 for all n. (b) Determine the impulse response of the system. (c) Determine the step response of the system. ==

不會

The store 、填空 1. Jenny: Have you Alice: No, I 2. Roger: David: two hours. 3. Linda: Has the rain stopped Kevin: Yes, it's (a) 4. Teddy 5. Nancy: Are the dogs Peter: No, they aren't. 6. Bill 7. It takes (mop) the floor? has Tom played the new video game? ? stopped. (wake) up by the phone call this morning. (wash) by Betty every week? Lesson 3 67 (not finish) making the sky lantern yet. He's still working on it. (much) time to write a poem than read one. 8. Jimmy: Where did you meet Sara last time? (meet) her at the airport. We 3 (not see) each other for Cathy: I years. 9. Watching the movies on TV costs 10. Making snowmen is as (little) than going to the movies. (interest) as throwing snowballs.

用右手安培定則比出來都是相反的？為什麼呢？

(一)甲、乙兩質輕的金屬管分別跨接在無包覆 的金屬導線上,如右圖所示。試回答下列 N 24 問題: N ) 1. 在開關S尚未按下前,甲、乙兩管何者會移動,移動 方向為何? (A)甲、乙管皆動 (B)甲管動,乙管不動 (C)甲、乙管皆不動(D)甲管不動,乙管動 2.在開關S按下後,甲乙兩管何者會移動,移動方向為 何? (A)甲管向西,乙管向南 (B)甲管向東,乙管向南 (C)甲管向西,乙管向北 (D)甲管向東,乙管向北 Jall!

請問這兩題怎麼解 謝謝

Table 17-8 Mc=4 er. As For a certain small town, the table shows the demand schedule for water. Assume the marginal cost of supplying water is constant at $4 per bottle and there are no other costs. Price Quantity (bottles) TR R MR02 $9 200 1800 9 $8 400 $7 600 42 $6 800 3,200 & 800 8 $5 1000 5000 5 $4 1200 4800 4 $3 1400 $2 1600 4,200 3 3200/2 a monolopy 245 FX MR = MC 28 Refer to Table 17-8. If there were only one supplier of water, what would be the price and quantity? d. The price would be $7 per gallon and the quantity would be 600 gallons. b. The price would be $6 per gallon and the quantity would be 800 gallons. c. The price would be $5 per gallon and the quantity would be 1000 gallons. d. The price would be $4 per gallon and the quantity would be 1200 gallons.