想問問這題🙇🏻

C 1. classroom. the students sprang up from their seats and ran out of the (B) The moment the bell rings (A) Upon giving out homework (C) Upon hearing the bell ring (D) Upon dismissing the class 2 一看見久違的朋友

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

求解

ming up his body first. (A)without 双否定 (B)to (C)of (D)as The naughty kids disturbed a nest of bees do it again. (A) of (B) by (C)for (D)with no reason and got stung. They promised to never You can come join us on our trip to the mountains. One person doesn't make any difference our arrangements. (A)on (B)for (C)about (D)to

求解謝謝🙏

解: 3.如右圖,梯形ABCD中,AB // CD,∠D=2∠B,AD=5, CD=3,則AB=? C 3 5 B W

想請教這兩題： 我做第二題時(圖一)發現 無法直接將頂點作推移矩陣，得出的點並非新頂點， 只能用變數變換求新頂點 但第三題(圖二圖三) 詳解直接將焦點做鏡射矩陣了， 因此我想問的是， 有哪些特殊矩陣(即旋轉,鏡射,伸縮,推移) 是可以將特別意義的點(像頂點,反曲點,焦點)直... 繼續閱讀

No. #4x+3y=50 2.拋物線:(x-2)=4(y+3)上的點,經推移A=| [18] 變換後的圖形為拋物線 2 '的準線方程式為 ,試求的焦點坐標為 點是由上的4點推移而成,試求4點坐標為 。 ,的頂 Date 2-072 Hi 1717-7 xzX -- 1 y=2x+y.② y=y-2x (x-2)² = 4 (Y-2x+3) x²-4x+4 = 44 -8x+12 X+4X+4 = 41Y+12 (X+2)=4(y+3) →新貢奌(-2,3) 扌 肯変

求解

牆壁 磚塊 16 15.阿翔用力將一塊3kgw的磚塊緊緊壓在牆壁上(如右圖),磚塊靜止不 動,則下列敘述何者錯誤? (A)阿翔的施力剛好為3kgw 手施力=正向力摩擦力 (B)磚塊所受的合力為零 (C)磚塊所受總摩擦力的大小為3kgw (D)磚塊所受總摩擦力的方向向上 Ak 154 國中自然(四) 月 日 2 ,

求解

E D 甲48 F 7. 如右圖, ABCD中,E、F、G三點分別在4D、 CD、BC上,AF和BE交於H點,若甲的面積為 48平方單位,乙的面積為57平方單位,丙的面積 為10平方單位,丁的面積為3平方單位,則△AEH 的面積為 平方單位。同類影四目,中 4BCD B H 籤G C

求解3、4題

(D) 拉力(砝碼數) A、B 為相同接觸面,若 FN N 3300 F2 180=300 公克),則圖(二)中不使木 圖(一)施力F=180公克重 恰可拉動木塊(m=300 (D) 80 拉力(砝碼數) 180gw(摩擦力) 300gw(摩擦力) -Fi B F F2=500 塊掉落,F,至少需施力 多少公克重? 150 圖(一) 300 5 圖(二) 2 (A) 180 (B)360 (C) 480 (D) 500 方格紙每格長表 10gw的力,一物同 時受甲、乙兩力作用如右圖,則此物 所受的合力大小為多少 gw? = 500 (A)30 力始終與郁心(C) 20 (B) 25 (D) 2012