求解

彈簧秤 (D) 600 cm² ( 3 一個實驗裝置如右圖所示,在兩個彈簧秤下方分別吊掛重物 甲、乙,再將重物浸入純水中,待重物靜止後,兩個彈簧秤 的讀數皆為100 gw。已知甲、乙的質量分別為200g、300 g,若甲、乙的密度分別為DDz,則D:DZ最接近下 列何者?(兩彈簧秤均可測量至500 gw) (A)1:1 100 100 [104會考-44] 200 Too N 彈簧秤 水 200 :2 100=200-1200X1VC=1.5 7 1002300-300x1 2:1.5 24:3 : (C) 2:3 A a (D) 4:3 (B) 1:2

想問這一題有沒有其他的解法，有點看不懂解析😔

ACE n=3 n=0, 9020 2120, I 78 試問下列哪些角度和250* 有相同的餘弦值? 00X250°=-C0570" (A)-110° (B)-70° (C)110° (D)290° (E)610° " Cosso costo costo° Cos 70° Cosaso

請教這兩題🙏

people based on their appearance. lence against Mean women happen Jevijas & 101 19 svlovai dan od (8) II. : 10% for one now no absof bluoda uszods levitest out rights turned violent, and ten peop (D) Mexicali oma hosed (&) 11. In 1926, Gertrude Ederle became the first woman in history is befrom England to France. (A) to swim (B) swim .85 (C) swam gnillimduz topic, she'll require that the group (C) 12. If the teacher doesn't like the to (A) comes (B) came (C) come group (D) swum up with (3) a new one. (D) to come B ing B

請問AOT為什麼是直角三角形？詳解的方位座標為什麼不是垂直的😭

即山高為200 6公尺。 A 800 B 400 C 243 類題1 北 T 作圖如右, 150 60° A 因為△AOT 為直角三角形, 西 東 O 且<TAO=60° , $1+ 150 南 所以O4 = =503, 450 √301 B 80← 同理△BOT 為直角三角形,且∠TBO=45°, 所以BO=150, 宝箱由江海 又△AOB為直角三角形, 故AB=x(50/3)²+1502 =√ 30000=1003(公尺)。

想問這兩題不用二項式定理可以怎麼算？

4X+15 4x+18 20 5410 TY FIL LIX+3X 5414X 【常考題】 57+10 例題15 44418 X=-12 -4% 27 50 3x+12y (x+3)! y=-11 17/412 (-W 設二階方陣4=| 並求出a、b的值。 試將 1+24 表示成ad+b(a、b為實數)的形式 解 @_ (A) + (32" (3A)+( 解題步骤: @ 4A120A +3A+ZA A 2 19 2 1. AA (ZA)=(A) +Cε2°(EA) (&(A)+(&(EN) + I + (ci+c+c ~14 (2²-1) (M) - I'm G (A)-(A) (A) (34) (A)-(A), •CA-(A)(A)(A)(A)(A) @ZA-AZ-A =22) (1+2 A)* 1 # 190

請問第二題要怎麼解😭

cos 90° sin 90° 故 sin 90°-cos 90° 所以P點的坐標是(一 (2)以L:y=3x為對稱 鏡射矩陣為 cos 120° sin 120° cos 120° sin 120 EX sin 120°-cos 120 3212 1232 4 2 0-45 L 91-55X M m:B tan-53 7 02-60° p+(-2.4) 4 12) 63/20 574/20 A. 41 ][2][3]. = 1 J=-x m=1 = tank -103(-90) sin(-702 5m(-90°) -3(-40°) 11 M= 所以P點的坐標是(一 97 X軸為對稱軸(斜角 Os 0° sin 0° 10° - cos 0° Cos 0° sin 0° in 0°-cos 0° 0 To 2 1 2 2 0 0 -1 -1 0.1 || 類題 『變換後所得圖 2 HON By: x J= 15 m = = = tand 設平面上一直線L:x-3y=0, 0=30° a 9 1 0-220 (1)求點P(1-33)對於直線的對稱點P'的坐標。 ②求直線x+3y=2對於直線L的對稱直線L'的方程式。圏 山 cos 600 -Sinbo 7 5th 60-60360° (41255) = # 2- -4. 32 -35 烧

https://docs.google.com/forms/d/e/1FAIpQLScLM8dSRRu_K1RoYXsqISiHvD4P5WuIUP82e846bVvHJ9SrBw/viewform?usp=header 幫我填問卷

求解第19題

The company's best-selling software is an application pronunciation. (A)X (B), which (C)which (D)what can correct users' English the local Learning to speak the language of the country you're about to visit is worth doing, 70 people the impression that you respect their culture. (A)giving (B)gave (C)given (D)gives L

問第11題

Bolz (C)to seeing (D)of seeing My mom was very pleased to see the dishes by my father. (A)do (B)to do (C)done (D)doing Sam never goes swimming without warming up his body first. (A)without (B)to (C) of (D)as 双否定

求解15題

our arrangements. (A)on (B) for (C)about (D)to person doesn't make any difference repeated failure, Joyce never gave up and kept going on. (A)Despite (B)Without (C)Though (D)By The diner finished his lunch, i 1 ! a big tip on his table in appreciation of the good service 16 provided by the waitress. (A) left (B) to leave (C) and leave (D) leaving