> > 5.(20%)如下圖,已知邊長為1的正方形ABCD,其中 DE || AC H AC = CE, DE 的長度為多少?請寫下計算式。 E A D C B
第四單元14 三角形的基本性質 素養新鲜視 在 過彎角度 奇鼎大樂園裡的卡丁車賽道深受民眾喜愛,如右圖,主要賽道 為一個五邊形ABCDE 環狀路線,内部也有許多條捷徑道路,已 知 ZBAE=100°,∠B=120°,ZACF=35°,∠CFD=105°, 30. 40° F105° ZCDF-40°,ZFDA-30°,且AC平分 ZBCF、AD平分 > 会学 350 O 35 十 120° ZFDE。獅子車隊全體成員在比賽前夕來奇鼎大樂園的賽道練 習,請回答下列問題: 9
D 精選範例 3 二次不等式的應用 設(x)為二次函數,且不等式(x)>0 之解為-2<x<4, 則子(2)<0 之解為 M 解題思考&策略 自上 +389-4. || • f(x)>0 之解為 -2<x<4表示f(x)可 分解出(x+2)(x-4) 一 | 之因式,但首項係數的 正負要注意。 1 co (X+2)(8-4). Com? ' fiox) commend al: Lo + x2 - 27-8 to ²R [-tan* 4 2/28) +8] <0 + 7-X + 2X +8 so =) X ²X-7>0 fer- al+x+28+8 ) >0 – 0-2)(x+1/20 1 -1() >0 so 70 fona ql-2x laro " X72 or X-| *
Pre P2.4 (LO 4) The trial balance of De Bortoli Co, shown below does not balance, De Bortoli Co. Trial Balance June 30, 2020 Debit Credit $ 3,340 $ 2.812 1,200 2.600 3.666 1.100 Cash Accounts Receivable Supplies Equipment Accounts Payable Uncarned Service Revenue Share Capital-Ordinary Dividends Service Revenue Salaries and Wages Expense Utilities Expense 8,000 800 2,480 3,200 810 $12.522 $17.486 that şi eu Each of the listed accounts has a normal balance per the general ledger. An examination of the ledger. and journal reveals the following errors. this 1. Cash received from a customer in payment of its account was debited for $580, and Accounts Receivable was credited for the same amount. The actual collection was for $850, V2. The purchase of a computer on account for $710 was recorded as a debit to Supplies for $710 and a credit to Accounts Payable for $710. ✓ 3. Services were performed on account for a client for $980. Accounts Receivable was debited for $980, and Service Revenue was credited for $98. X4. A debit posting to Salaries and Wages Expense of $700 was omitted. 第二 X 5. 5. A payment of a balance due for $306 was credited in Cash for $306 and credited to Accounts Payable for $360. 76. A dividend of $600 cash was debited to Salaries and Wages. Txpense for $600 and credited to Cash for $600. Instructions
82 單元1 多項式不等式 答 實數 單元1 觀念是非題 2. O 1. O 二、素養混合題(共16分) 第12至15 題為題組 有一塊鐵片,長6公尺,寬4公尺,今在四角各截去一個相同的「小正方形,然後援 成一個無蓋的長方體容器。 ( 13. 設邊長為公尺,滿足一個無蓋的長方體容器,則邊長有何範圍限制? (單選題,4分) (A)0<x<2 (B)0<x<1 (C)0<x<2 (D)0<x<3 (E)2<x<3 14. 已知此無蓋的長方體容器的體積不小於8立方公尺(鐵片厚度不計),則邊長x的範圍 為ixel。(已知邊長x=1可以滿足條件)(6分) 15. 已知長方體的體積不小於8立方公尺,則截去四個小正方形後剩餘鐵片面積最小為 70 平方公尺。(6分) X O 5. X 6. X 填充題 o 1. 91 1150 2. 6. 解 3. 456 4. 3+√15 5. N2 +2+ 6-27 1-2
1 O 34. 有兩隻螞蟻在地球儀上的南極點向不同的方向等速前進,牠們先向前走5公分, 再同時向正東走5公分,然後再向南走5公分。請問這兩隻螞蟻最後會如何? (A)相距5公分(B)相距10公分(C)在南極點的東南方5公分處相遇(D)在 南極點相遇。 0 0
ities of €300,000. Answer the following questions. a. If total assets increased €150,000 during the year and total liabilities decreased €60,000, what is the 110.000 292 amount of equity at the end of the year? 800.000 + 150,000 - 200.000 - 50.000 = ţ9000 g b. During the year, total liabilities increased €100,000 and equity decreased €70,000. What is the amount of total assets at the end of the year? 800.000 - 100.000 ibal (101) c. If total assets decreased €80,000 and equity increased €120,000 during the year, what is the amount of total liabilities at the end of the year? on mobi 919 229001q gnito mi qo Solve expanded 1 C.1. following questions
9. 已知坐標平面上,圓的半徑為10,圓外有一點P,P點到圓上最遠的距離為28 則P點到圓上最短的距離為 10. 坐標平面上,有一個圓以原點為圓心,半徑為4,若有三直線x=4、y=-5、x-y=4 回答下列問題: (1)哪一條直線為圓的切線? (2)哪一條直線為圓的割線? (3)哪一條與圓不相交?
1 k = 6 A6 5. 已知A ABC 在平面上為一直角三角形,若CA為直角,且A(4,-2)、B(1-5)、 Cod C(-2.k),試求實數k 之值。 -- El 0 E E-10 C-o & (進階題) 將一張畫有直角坐標系的圖畫紙摺疊一次,使得A(4,0)、B(0.6) 兩點重合, 紙豐一一八 , 得到的摺痕為直線L,試求直線的斜率。 0 o 提示直線L為 AB的垂直平分線,由LLAB,即可求得直線的斜率。
