問選擇和計算6、8

1 passed the math test. (C) that watching movies is interesting. (B) and ) 8. Many people think 三上數學 2-1(3)圓外切四邊形、弦、切線､ 如圖,有AB與AC 兩線段。若一圓 O過 A、B 兩點,且與直線 AC相切,則下列哪一條直線會 通過圓心O? (A)∠CAB的角平分線 2. 如圖,四邊形 ABCD 為圓 O的外切四邊形,若 AB = 3x-2, BC =3x+2,CD =x-S,AD=2x+1,則四邊形ABCD (B) AC的中垂線 (C)過C點與AC垂直的直線 (D)過A點與AC垂直的直線 2X+ 的周長為5. AB+CDAT元 2 3X-2 7X-2-5X+3 13+15+3价 B 2X = 10 =28X2 4.如圖,圓 ○分別與AB、BC、CA 切於D、E、F三點, CADE 3X-2+4X-5=2X+1+3x+2X=558 3.如圖,等腰梯形ABCD 為圓 O的外切四邊形,若AD =8,BC=16,RAB AB: 12. 若 AD =18,則△ABC的周長為_ 18-X-X 9+3=7AB+B+CA =X=1P 號2 -姓名朋友才 = 2, CD=8,則圓的半徑為 41:20 ++(-2)=1- 16+X-42+4=X 5 6. 如圖, AB || CD,OT − AB,若CD = 6, AB = 4,OM = MT,則圓的半徑為何? 18⁰. AB+x+y+CA/ X=9 18 5. 如圖, AB是圆O的直徑,CD是圓 的弦,且 AB - CD於M點,若AM 56. BXD • (20 B D 7. 如圖,△ABC中,AB6、BC10、AC-8,若三直 線AB、AC、BC分別與圓 O切於D、E、F三點,來 D BE的長。 X-6+X-8=107 .62 BE ->X-14=10 √36+1446 =X=>4 =6,55 3.如圖,但面还有大、小兩個同心圓,其中 4B 為大圓的 一弦,且切小圓於 R點。若兩圓之間的環形區域面積 公分。 為225 » 平方公分,則B= = x 14+X-2X+1 2X=5,X=3 T-DX 2010 (-1,k) α = 0B² 兰 放 9.如圖,某商店的圓形招牌因颱風吹落而破碎。種那種一小塊產生的二 今欲重做一個與原尺寸大小相同的招牌,經測量得知AB 下 =1公尺,其中M為AB中點,MNAB、若金葉形重板的半香港 X=2+(x-1) 放學時 k={ 10. 如圖,圓的部分弧上有三點A、B、C、其證 為(-2,4)、(3,1)、(1,4),求圓心的坐標為间? 2+12/25 (-2-1)²+(14) |_|\-) (2)+kx++)/ 営 3.

問錯的這幾題

1 passed the math test. (C) that watching movies is interesting. (B) and ) 8. Many people think 三上數學 2-1(3)圓外切四邊形、弦、切線､ 如圖,有AB與AC 兩線段。若一圓 O過 A、B 兩點,且與直線 AC相切,則下列哪一條直線會 通過圓心O? (A)∠CAB的角平分線 2. 如圖,四邊形 ABCD 為圓 O的外切四邊形,若 AB = 3x-2, BC =3x+2,CD =x-S,AD=2x+1,則四邊形ABCD (B) AC的中垂線 (C)過C點與AC垂直的直線 (D)過A點與AC垂直的直線 2X+ 的周長為5. AB+CDAT元 2 3X-2 7X-2-5X+3 13+15+3价 B 2X = 10 =28X2 4.如圖,圓 ○分別與AB、BC、CA 切於D、E、F三點, CADE 3X-2+4X-5=2X+1+3x+2X=558 3.如圖,等腰梯形ABCD 為圓 O的外切四邊形,若AD =8,BC=16,RAB AB: 12. 若 AD =18,則△ABC的周長為_ 18-X-X 9+3=7AB+B+CA =X=1P 號2 -姓名朋友才 = 2, CD=8,則圓的半徑為 41:20 ++(-2)=1- 16+X-42+4=X 5 6. 如圖, AB || CD,OT − AB,若CD = 6, AB = 4,OM = MT,則圓的半徑為何? 18⁰. AB+x+y+CA/ X=9 18 5. 如圖, AB是圆O的直徑,CD是圓 的弦,且 AB - CD於M點,若AM 56. BXD • (20 B D 7. 如圖,△ABC中,AB6、BC10、AC-8,若三直 線AB、AC、BC分別與圓 O切於D、E、F三點,來 D BE的長。 X-6+X-8=107 .62 BE ->X-14=10 √36+1446 =X=>4 =6,55 3.如圖,但面还有大、小兩個同心圓,其中 4B 為大圓的 一弦,且切小圓於 R點。若兩圓之間的環形區域面積 公分。 為225 » 平方公分,則B= = x 14+X-2X+1 2X=5,X=3 T-DX 2010 (-1,k) α = 0B² 兰 放 9.如圖,某商店的圓形招牌因颱風吹落而破碎。種那種一小塊產生的二 今欲重做一個與原尺寸大小相同的招牌,經測量得知AB 下 =1公尺,其中M為AB中點,MNAB、若金葉形重板的半香港 X=2+(x-1) 放學時 k={ 10. 如圖,圓的部分弧上有三點A、B、C、其證 為(-2,4)、(3,1)、(1,4),求圓心的坐標為间? 2+12/25 (-2-1)²+(14) |_|\-) (2)+kx++)/ 営 3.

求解 真的不知道要怎麼畫 老師又沒給答案😭

3. Following table shows the number of labor hours required to produce a digital camera and a bushel of wheat in US and South Korea. Please answer following questions referring to the table. US South Korea Total Digital Camera 100 hours 90 hours 190 hours Wheat (bushels) 5 hours 3 hours 8 hours A). If each country has a total of 9,000 labor hours to devote to the production of the two goods, please draw the production possibilities frontier for each country. Put "Digital Camera" on the horizontal axis and "Wheat" on the vertical axis. Be sure to identify the intercept values on your graphs. B). Suppose each country allocates 60% its labor hours to wheat production and 40% to the production of digital cameras. Complete the table like the one above to show each country's output of the two products. C). c. If the two countries do not trade and consume whatever they produce, identify the current production and consumption point for each country on their respective production possibilities frontiers. Label US's consumption point “C” and South Korea's consumption point, "K".

以下是心統的題幹和問題 想請問這題要如何計算？ 謝謝！

3. David challenge you to play coin toss game. If you win, he will give you $10. If he wins, you will give him $5. He tells you the coin is fair. 大衛找你玩丟銅板遊戲,如果你赢一次可以拿到 10 元,如果 他贏一次要給他5元。他說銅板沒有動手腳。

需要這四題的詳解🥲🥲🙏（微積分）大一

8./On what intervals are the following functions continuous? a. f(x) = tan x b. g(x) = CSC X COS X c. h(x) d. k(x) = = X sin x X T

有人會空白的題目嗎

國三上 第二課文法練習題 姓名: 依提示作答: ✓//1. Playing online games is interesting to many students. (1) Playing online game was interested to many students. 2. Vicky's sad story was surprising to us. (用過去分詞改寫句子) 3. Terry and David were excited about the basketball game. (用現在分詞改寫句子) ✓4. All the people at the theater were satisfied with the movie. (用現在分詞改寫句子) ✓5. The computer homework is boring to Jenny. (一般動詞改寫句子) 6. It is boring to Helen to spend her summer vacation staying at home all day. (請將此句以「某人對某事感到無聊的」改寫) ✓ 7. Children is excited about Halloween. They can go trick-or-treating on this holiday. (將兩句用「某事對某人是興奮的」合併成一句子) Children is exciting to go on Hall ✓ 8. Doing the same work bores Jane's father. ((a)♬ boring (b)♬ bored Jane's father. the same work (a) Donig is boving (b) Jane's farther is brored with doing to came work surprising ) 10 trick-or-treating V 9. The story surprises young people. ( oween. The story surpising to young people 10. Was everyone in the house surprised at the good news? ( Did...?7) 11. The answer to the question was satisfying to them all. (用 They 改寫句子) V Many people was inspiring 12. Many people were inspired by Nick's movie. (be inspiring to... 7) to Nick's movie 13. The class trip to Sun Moon Lake excites all of the students. (All of the students....07) 14. To eat the same food every day is boring to the boy. (用 The boy....改寫句子) The boy is boved to with eat the same 15. Every student excited about the game. same food (The game is....) food every every day. 1

閱讀測驗跟中譯英請幫我解答全部謝謝

(D) 3. The smell of freshly-baked cookies filled the room. It was hard for the little boy to the desire to reach out for one. (B) resist (D) import (A) 4. If you get lost in the woods, follow the (A) offer (C) deliver that runs along the river, and you will quickly find your way back to the town. (A) trail (B) flavor (C) seal (D) reserve (D) 5. Although it is often classified as a vegetable, the tomato is a fruit because it develops from a flower. (A) widely (C) mistakenly (B) necessarily (D) technically ''A'' fries go perfectly with a juicy burger. They are hard ) 6. Golden and delicious, these on the outside but very soft on the inside. (A) rocky (C) crispy 二、文意選填(25%) Is a tomato a fruit or a vegetable? It's a ___(7)___ that carries on. However, there's no question about its ability to (8)_ the flavor of foods it's added to. It makes sauces and salads better, and is also a healthy snack. When ripe, a tomato is super juicy. Historical studies (9) that tomatoes weren't always as well loved as they are these days. Tomatoes are(10)__ to South America, and they started being shipped to Europe in the 16th century. There, it was thought that tomatoes had been the (11) of several aristocrats' deaths. The acid in the tomatoes drew the lead in the plates out, which killed those eating from them. (B) lively (D) negative (A) reveal (B) debate (C) deepen (D) cause (E) native Answers: 7. (A)8. (C) 9. (B) 10. (E) 11. D) 三、閱讀測驗(21%) San Diego is a beautiful city. Located on the west coast of the United States, it has over 1.3 million people living in it. It's the second largest city in California. Known to many as "America's Finest City," it offers nice weather and a relaxed way of life. There are many places to visit in San Diego, but few are better for getting a feel for the city's culture than Balboa Park. It's a big 1,200-acre park designed like a Spanish village. It has museums, exhibition spaces, and gardens. The San Diego Zoo is found within the park. It features more than 14,000 animals from around the world. If you are a history lover, go to Old Town. It has old buildings from the 1800s and lots of shops and restaurants. Old Town was the first European settlement in the state of California and is considered the birthplace of the state. (C) 12. What is the purpose of this passage? (5%) (A) To introduce a travel spot. (A) 13. (B) To explain the history of a city. (C) To suggest a full-day tour in a park. (D) To change people's opinions about San Diego. 13. According to the passage, which of the following is true? (6%) 1 2 14. Write T (True) or F (False) next to each statement based on the passage above. (10%) Live B2-2 (A) Balboa Park was established in the 1800s. (B) Balboa Park is like a town within a city. (C) The San Diego Zoo is right next to Balboa Park. (D) Old Town is why San Diego got its name as "America's Finest City." There are many people living in San Diego. The city's population is listed as being over 1.3 million. San Diego is the largest city in California and the second largest on the west coast of the United States. Balboa Park is a 1,200-acre park designed like an American village. It's where people can get to know San Diego's culture. The San Diego Zoo is located inside Balboa Park. It houses over 14,000 animals from different parts of the world. Old Town is where people can expect to see buildings that are over 200 years old. 5 四、中譯英 (24%) 15.患有憂鬱症的人可能會每天無緣無故地感 到悲傷,容易獨自哭泣。 Those who s with depression may feel sad for no reason and tend to cry alone on a daily basis. 16. 隊員們把表現不佳怪罪於雨天,卻忽視了 自己練習不夠的事實。 The team members b blame the rainy weather for their poor performance while overlooking the fact that they didn't practice enough. 17. 這家商店的經理注意到上個月的銷售額有 所下降,這表示許多顧客可能已轉向網路 O The store manager noticed a decrease in sales last month, which suggests that a n customers may have switched to online shopping.

想問一下這些🥲🥲

二、填入正確的動詞時態 (10分,每題1分) I have lived (live) here since 2005. 1. I (know) Ricky for twenty years. 2. We (not see) Uncle Jimmy since last March. 3. The king (visit) the small island every year. 4. Eddie Christmas holidays in America next month. 5. Jessica to Japan before. (spend) his 6. There (be) some police officers standing in front of the station ten minutes ago. 7. Dad (bake) cookies in the kitchen now. 9. My sister 8. How many hours Ryan games since he got home? doctor for two years. (never be) 10. Miranda (play) video (be) a (go) to America. She will get there tomorrow morning.

（大一微積分） 請問這題這樣寫正確嗎？背流程寫的😅，圖一為需用到的定義 正確的話，想問紅色圈圈的1是怎麼來的？

DEFINITION Let f be a function defined on some open interval that con- tains the number a, except possibly at a itself. Then we say that the limit of f(x) as x approaches a is L, and we write lim f(x) = L x→a if for every number &> 0 there is a corresponding number 8 >0 such that | ƒ(x) − L| < ɛ if 0 < x-a <8 then

緊急求解🫸🫷

例題 10 使用計算機求科學記號的計算 國際天文學聯合會(International Astronomical Union,簡稱 IAU)目前使用 IAU2009 天文常 數系統,涵蓋天文學使用的各種常數值。例如,光的速度是2.99792458×10²公尺/秒,一 天文單位(au)是1.49597870700×10"公尺。試根據這些資料回答下列問題: (1)光年就是光在一年所走的距離,試以科學記號表示一光年約有幾公里?(一年以365.25 日計算,係數部分四捨五入到小數點後第二位)(5分) (2)一天文單位是指太陽到地球的平均距離,請計算太陽光從太陽到地球大約需要幾秒鐘的 時間?(四捨五入到整數位)(5分) 若 試求 「