請問為什麼點p到L距離是負的？

32 For 36,4) (3,0) 1600-25. 4.設點P落在由x軸、y軸與ㄥ:4x+3y=12所圍成的三角形區域內且OP: (O為原點),則P點到此三直線距離和的最大值為 P/T op² = 3/5 = √(8-0)² + (1 - 0) 2 35 = 5 = √ q 3√√√5 5 • 4x-334-172) 4×434-12 5 - =(x+2/+12) 3 (= >> X²+ y² = 2 ¥ 1 ] 2 x 3 1 ( x + y 2 ( 1 + c ) 2 ( x + 2)² 7x52(x+1)² => -35+2/33 115 5 (x+y+1)最大值/(3+12) 5. 設兩非零向量 u=(a,b),v=(c,d)滿足| |+|V|=|zu+V」,則行列式 #3 √6a √3b 2c √2d 0. tull v

請問這兩題如何判斷？

◎歐洲許多高山擁有壯麗的山岳冰河景觀,往往成為熱門的登山健行景點。在進行登山健行 活動之前,最好事先瀏覽相關圖資。圖(一)為歐洲某處山岳冰河的衛星影像圖,除了山脈陰 影之外,淺白色為冰雪堆積,圖(二)為同一地的等高線地形圖,兩圖中的甲、乙、丙、丁為 4種冰河地形。請回答7.、8.題: 〔109.學測] km z 1 km 3013 ､圖(一) 8. 圖(一)位於圖面右側方框中的兩條深黑色曲線,最可能是下列何者? (A)堆積的冰 磧 (B)流動的冰水(C)崩塌的落石(D)磨蝕的槽溝。 答對率19% 28. 假若全球暖化持續加劇,在相對較短的地形演育期間內,圖中哪些區域可能會出 現湖泊? (A)甲、乙 (B)甲、丙(C)乙、丁(D)丙、丁。 答對率36% Ⅲ:oogls Earth)

為什麼不能選C呢？

Q17: W: I'm putting a bookcase together, but some parts seem to be missing. What should I do? M: Did you check everything when you opened the nemudof box? gaudo W: I remember I did, and I've looked again everywhere in the box. But I couldn't find all of the parts shown on the instructions. M M: Then I'd return it and ask for a replacement if I were you. And you can call their customer service first. Q: What does the man suggest the woman do? (A) Get a new set. (B) Check everything again. (C) Call for booking. (D) Serve customers.

求解 高職數B

(D)7,已知方程組 卷末館 巷中隙 x+y+1_2x-1 (C)0 (D) 1。 4 養小 == 5 y+1的解為(a,b),求a-b之値 (A)-2 (B)-1 2 【102 統測 B】

拜託拜託🥺

2 (x³-3x²) + 3x + 3 3. 已知二次函數滿足以下三條件: (l)f(-4+t)=f(2-1),對任意實數t; x³-3x²+3x-1 bx 2 (1-1) -3x+1 3(x-1)+4 (11)在區間-3≤x≤5,f(x)的最大值為24,最小值為-84; (III)f(-3)>f (5) ° 試求f (7) = -168 (-3,24)(5,-84) -3 -84 y = a(x+h)² + k 24 = a(3-h)² + k

想要請問這一題 謝謝

- - (II) x 29 若將小磁棒斜向拋向空中旋轉,考慮小磁棒受重力及磁力影響,但不計空氣阻力的作用 而物體的質心是用來描述物體整體的運動趨向,則 (A)磁棒所受裁力為零受合力作用 (B)磁棒所受重力為零 (C)磁棒質心沿著地球磁場的方向運動 (D)磁棒質心會沿著重力方向運動 1 (E)磁棒所受總力矩為零 有動力矩不為0.

請問這題 C. D. E怎麼算

DM) 出版 WE (KCIO) 者油(KC 2.若有14克氫氣與80克氧氣燃燒生成水,下列敘述哪些正確?(應選3項) 完成後將生成5莫耳水(E)過程中用去2.5 莫耳氫氣 (A)氫氣為限量試劑 (B)氧氣為限量試劑 (C)反應完成後將剩餘4克氫氣 D FOR SECH(2) 3045) MAKELY SKCIO H2+102 → AVO 係2:11 14g jog 458 XX8 = 45 全)習作同 Male 14 80 20 8

紫色筆記的好像是指染色體數吧？ 看不太懂怎麼看的🙏

(A)精子的形成 精細胞 次級精母细胞 8 精原细胞 初級精母細胞 #8 2088 2n 11 18 群 ya Fa 4a 27 n 受精 染色質複製 減數分裂班 減數分裂II

第三格時態，看不太懂 答案是have been erected

still other (D) the butle by ancient tribes as a sort of astronomical calenda about lunar and solar eclipses They are believed to 3 The tribesmen may have used them to make the 4 except that we have no idea why they would have been so much interested in eclipse Some think they may have been a temple, meant for religious or ritual ceremonies. 25m5100t the functions were, it remains a mystery just how those huge stones wer moved to the site and placed in such a circular arrangement. ts are still puzzled how the tribesmen managed to move the heavy stone columns. (C) phases (D) ratios boon bas (C) by accident A 1 (A) theses 2 (A) no longer (B) series (B) not only (D) as a whole 3 (A) erect (B) be erecting (C) be erected (D) have been ere A 4 (A) construction (B) predictin

請問為什麼是ed不是ing🥲

UNIT New 10 10/15 (8) 1) ★ ★ Technology Environment News Watch The Rise of Robotic Dogs in Law Opportunities and Challenges Ah 警用機器狗「殉職」 科技執法的兩難 E arlier this year in the US, Massachusetts State Police used Spot, a robot dog, in a seven-hour standoff. Spot was deployed¹ 5 using or carrying weap after a 30-year-old man, armed and holding a knife to his mother, went into a home and blocked himself inside. The suspect shot Spot three times, sparking debates on appropriate use of robot Suitable dogs. Spot plays a big role in entering dangerous areas and getting vital information remotely during police standoffs. Also used in New York and Los Angeles, the robot dog is praised for its potential to enhance the safety of officers and civilians². However, the camera-equipped dog also started discussions about privacy