求解拜託🙏

2.)如圖,正方形ABCD內切兩個圓○、○,且圓O、O 外切,已知AB=8,若 O、O的半徑爲x、y,則: (1)0,0₂= ? (2)x和y的關係式為何?(寫出x的範圍) (3)當x爲何值時,圓O、O,面積和最小? A B 6. C

求解

10. 如右圖,坐標平面上,B、C、E三點在x軸上,A、C、D三點在同一條直線上,且ABLx 軸 於B點,DEx軸於E點。若BC:CO:OE=4:5:2,則AB 長度為 DE 長度的幾倍? (B) - (A) // (C) 4 (D) - B C C OE

求解🙏

doesn't allow its students to O school. Why? A parent was sion after being hit by a ball. Poots Pennsylvania aren't Soots to school. It's to e cellphones in the boots. classroom GOLLA an (U.S.A.) doesn't - The school asks tween classes for their safe in classrooms. po 21000 JE arted the rule - No e schools in New is clear to avoid nts. 六、依提示作答:每題3分,共6分 1. Alice has been an engineer since she was twenty-three. (根據劃線部分造原問句) Alice has been an engineet? 2. 2. We should buy tickets before getting on the bus. 36822 (改成被動式句型) Before getting on the bus we should buy tickets, 七、看圖詳答:每題3分,共6分 (3) 1. 10 X Bob BAGE 88 3077 sorry... O BADE CHILG OF D2. Was Bob hit by a motorcycle yesterday? What housework hasn't Bill's mother done yet? She hasn't TIG 20 1

想問這兩題 很急請大神們幫幫忙🙏 謝謝o(_ _)o

ax + DN 9. ₺a(x+1)(x−2) + b(x+2)(x −1) + (x − 2)(x+1) Tit 2x²+3x+c ¹] a+b+c=

答案B，想請問此題如何列示/計算？

單選題 (10.0 分) 如圖,梯形ABCD中,EF 為 BD 和 AC 的中點連線,則 EF =? D O O 1 2 4 檢查答案 F O 8 B 12 E 凸手寫板 ?

求解！急～ 謝謝

11.將六邊形 ABCDEF影印縮小爲 90%得六邊形 ABCDEF,已知AB=5,∠E=70°,則 AB的對應邊 A'B'的長度是多少?∠E的對應角∠E是多少度?

不好意思請問這題怎麼解？ 急謝謝

10.設 CDABF與 GIKNM爲兩個相似的五邊形,且知∠C:∠D:∠A:∠B=2:3:2:1, ZF=140°, 試分別求∠D的對應角∠I及∠A的對應角∠K之度數。

求解～ 急謝謝！

08. ABCD~ ABCD (1) B'C' = ? (2) CD: C'D' = ? (3) AD = ? (4) <B= ? D' A 75° 3 B C A' 15-x 9 B' 95 60° 3x-19 C'

求解～ 急～

07.設 ABCDE與ABCDE爲兩個相似的五邊形,且知 AB:BC:CD:DE: EA=1:2:4:3:2, 五邊形A'BCDE的周長爲 36 公分,試分別求 CD 的對應邊 C'D'與 AE 的對應邊 A' E' 的長。

求解～ 急～

①3.一個長方形爲 8單位,寬爲5單位,小瑜將它往內各減少1單位之後,得到一個較小的長方形,如 右圖所示。那麼所得新長方形與原長方形是否相似?爲什麼? 8