請問這幾題數學題應該要怎麼算？？

Xo ( )4. 美美與妙妙現在的年龄分別為x歲與y歲,且x、y 的關係式為y=4(x-2)。下列關於兩人年龄的敘 述何者正確? y = 4x-f (A) 兩年前,妙妙年齒龄是美美年龄的4倍 (B)兩年前,美美年龄是妙妙年齒龄的4倍 (C) 美美現在的年龄是妙妙兩年前年龄的4倍 D)妙妙現在的年齒令是美美兩年前年龄的4倍 2 ” (A) 5. 若二元一次聯立方程式 x+3y=11 - 的解為Xa, - x-y=-180M+x=a.

數學🆘

閱讀下列敘述後,請回答第11. ~12. 題: > 3 A FE B 47 如右圖,DABCD 中, BE CF 分別平分∠ABC 及ZBCD,且 | AB =8, AD=14。 )11. ZBGC 為多少度? (A) 60 (B) 70 (C) 80 (D) 90 (Apa 12. EF = (A) 2 ? (B) 3 (D) 6 (C) 4 A B 3 B -1 ()13. 如右圖,ABCD 為一正方形, 邊長為2, BEFD 為一長方形, 且C在 EF 上,則正方形ABCD 與長方形 BEFD 的周長比為何? (A) 1:1 (B) 1 : V2 (C) 4 : 3 (D) 4 : 3V2 9 4 ...... 014. 如右圖,阿傑使用三款磁磚 鋪在地板上,分別是正方形 與兩色全等的平行四邊形, 則平行四邊形中的鈍角為多 少度? (A) 135 (B) 125 (C) 120 (D) 100

求解，謝謝

E A. DI 101 B 6cm C 亲,mol.11B UC 2. 如圖,有一個邊長為6公分的正方形 ABCD,在此正方形的兩邊上放置兩兩個 6cm 邊長為6公分的正三角形(AADE與A FDC)。請問當入ADE 以D為圓心順時針旋轉至A T FDC 完全重合時,E點所經過的路線長為多少? 【解】未 10 100 本日:1 BE THE TOU 羅德:留。 本高(中) 二 法處簡報 0 / 生活2 都

想問這題怎麼算謝謝🙏

7 7- 5 1 - 1 3. (上 E = TE = 11 - - 9 7 X | 3 A- 1 1 9 9 9 右圖為一拱橋的側面圖,其拱橋下緣呈 一圓弧形,若洞頂為橋洞的最高點,且 知當洞頂至水面距離為80 公分時,量 得洞內水面寬為320 公分。試問: (1)某年因冬季久旱不雨,水面位置下降,使得拱橋下緣呈 現半圓,此時橋洞內的水面寬度變為多少公分? (2)某年因梅雨季使得水面上升,使水面至洞頂距離為40 公分時,此時橋洞內的水面寬度變為多少公分? 【解】 0 320 9 The Jeta e non = 105 troboo 32000 =4. =fo B You 0 ryob A = 815cm,

求解謝謝/

牆壁上掛有一時鐘,此刻正好為 10 點 10 分。若時針的尖端至圓心 的半徑長為18公分,經過20分鐘 後,時針尖端所經過的弧長為何? (A) 6 1 (B)8元 (C) 10 元 (D) 12 T S (大移良309 & & x 20 * 2718 To the To = 10° 《玩

想問這一題O移動的距離是哪一段 以及為什麼這樣算謝謝🙇🏻‍♀️🥺

B. 圖三_A *( X 1如圖,水平地面上有一面積為30元 平方公分的灰色扇形OAB,其中OA 6x6 * The X = 3 的長度為6公分,且與地面垂直。若 267-4 1 在沒有滑動的情況下,將圖目的 形向右滾動至OB垂直地面為止,如 圖四所示,則0點移動多少公分? (A20 (B)24 【基測題] (C) 10元 (D)30元 O É A 2 x 6 x 2 TL = lot 人) A B 0 動 67元

來不及了呃啊啊

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求空著的

V- 字彙填空(應用字集): old 1. My cat is 10 years o d. family_2. There are five people in myf housewife 3. Peter's mother is a full-time (T) h e. 4. Nana's sister is a c kin a bank(銀行). .y. 南: TE) s. ct Son beautiful 5. Look! The trees and flowers are so b 1. actress 6. Mr. Wing's daughter is a famous a husband 7. Mrs. Lin's h d is a farmer. 8. Alex and Rose are their s n and daughter. wite 9. Mr. Wang's w e is a beautiful actress. farmer_10. My father is a happy f 11. Mrs. Wang and Mrs. Lau are h 12. Who is that b 1 girl? Is she your classmate? 13. These good books are from af s writer (PET). r. es. 14. Jerry: Is it h d?

國一英文全部謝謝

2 (A) 1. Amy: Is this (3) 2 bike new? Zoe: No. It's old. (A) my (B) x (c) a that D) an ? (A) Is, a rabbit (B) Are; a rabbit (C) Are; rabbit ) 3. Ken: What's this? Tina: D) Is, rabbit (A) It's long (B) A ball. (C) Balls. (D) They're for you. ) 4. Mary: These are my dolls. Lily: Wow! Mary: Thank you. (A) They're beautiful. (B) They're not pictures. (C) It's a game. (D) They're Tina's dolls. Bill: Thanks. (A) This is a happy duck. (B) That's it! (C) You are a smart cookie! (D) We're not ready. Bill: ) 6. Jack: Is Luke the winner? (A) He's my good friend. (B) He's happy. (C) Yes, he's the winner. (D) Ten more points for him! Tina: Yes, it is. (B) That's a goose. (D) Isn't that a goose? ( ) 5. Tom: not (C) geese; mouse (D) book, phone ) 7. Amy: (A) What is it? (C) What are these? ) 8. Those are (A) puppies; babies (B) brushes; box ( ) 9. Alice: That's a bear. Jack: It's a zebra. (A) It's tall and strong. (C) I'm sorry, no. for you! (B) Yes, it is. (D) You're right!

第4題要如何解

主思 09我 (B) 16=1H 2 (C) 155 Ly X B1.右圖的方格皆為1cm) C為多少 cn ? (A)1 8C 21 (C) 2 C2110 1)2.60 介於哪兩個連續整數之間? (A)6、7 ON ( (B)7、8 RU 4806 (C) 8、9 Bya) (D)9、10 Or (8) CLICA (張的密合大 3. 欲將 a張邊長為1公分的正方形紙板密合拼成一個大正方形,若每張紙板均需 用完不能剩下,則a值不可能為何? CV (A) [ 100 = 10² ( (A) 100 (B) 121 ch DIE (D) 1967E14 1763 (A - 團長方形,割成四個直角三角形容一個正方 (4/將圖一的長方形,割成四個直角三角形及一個正方 |“形,正好可以拼成一個正方形,如圖二),則此正方形 yox 的邊長以x、y表示應為何? (A) 7x2 + 2xy (B) 2.xy SA 2 (C) / 4x² + y2 (D) 2/x+y SE (g) a的 5. 若7<a<8,則滿足a的整數有幾個? 泰国成人ST 81 THE (D) (A) 15 49 (B) 16 by ” 64 47 15. CORT 。 (C) 19 ( (D) 20 一、 ch D) 6. 06. 下列哪一個數最大? 1 3 21 (A) ); 3 (C) (D) 3. Sy圖。”(4.coC, US 17估管,1942的值是在下列那兩個整數之間? 大陸中考試題 A) 64-149 - 1) = 16 SEO } 2方