求解 問過但還是不太會🙏🏻

『類題:有甲、乙兩種氣體,在同溫同壓、同體積下,甲氣體的重量為乙氣體的兩倍 答 知乙氣體的分子量為16,則甲氣體的分子量為多少? = 21 分子數比=gds體積比= mol數比

求解

47.34 CEO (80) -38 CB 9.34 已知甲、乙二化合物均含A與B兩種元素,若47.34克之化合物含有38.00 克之A、52.00克之化合物含有38.00A,若化合物甲之分子式為A,B, 52 - 則下列何者為乙化合物之實驗式? B. (A) A,B, 日 (B) AB, -38 (C) A,B (D) A₂B3 14 (E) AB2 2814 A

想知道每個選項要怎麼證明 答案BDE

答案:PP a>b>c1 案:(B) C>b (3.5) 51373.5 → T JB-√15-B-√ √ √13 +55 > JT6 JT < Jo √13-√3 <0.6 119-5.下列選項哪些是正確的? (B)若a,b皆為無理數且3a+26為有理數,則2a-36必為無理數 (C)若a,b為實數,且a+b3=0,則a=b=0 (D)若a為有理數、b為無理數,且a<b,則必存在有理數e,使得a<c<b (E)在數線上√2012 和V2011的距離比√2012 和√2013的距離大。 (A)若a 與a²是有理數,則a2012是有理數

完全看不懂

=>(x²-3x+1)(X²+1) 13.如圖,有一圓形栱橋,橋面位置恰為直徑4B,為了慶祝活動的裝飾,計劃將橋面4B+ 等分後(也就是A4= 44=...=,=A+B),在每個等分點豎立一個鋼柱,45 A₂B₂ A,B,。已知AB=20公尺,則4,B3=(O)_公尺。 Bo B2BN BA, BA₂A,A 10

怎麼算，謝謝！

10.兩種化合物皆由A、B兩元素組成,化合物含A20%,化合物II含A25%,若化合物I的化學 式為AB2,則化合物II的化學式為何? (A)AB3 (B)A3B2 (C)A2B3 (D)A2B2

只知道最後一題的答案是5

下列各式: (3)x+4x²+1614. OPPO Reno5 Z

請問為什麼p(3相異點）的分子不是c6取3而是p6取3？ 再請問抽到（1、2、6）跟抽到（2、6、1）這樣的話 在機率裡到底算是同一種情況還是不同種情況？謝謝

(5)將正三角形的三頂點及三邊中點,如右圖所示,編號1號至6號。投擲一個 公正骰子三次,以其所出現的點數對應到正三角形上相同的編號,則所擲出的 三個點數可形成三角形的機率為 (請化為最簡分數) P(形成) (105台北區數乙模擬考) 1 =P(3 奌)-P(3奌共线) 号 12 003x31 63 b3 二 36 36-36# 2 6 3 5

求解 第六小題🙏🏻

5. 設 a=2+3,b=2-3,則: (1) a+b=4。 (4) a²+b= (2) a² + b² = 14 (3) a²-b² = 8√30 1/2 (5) a²+b² = 194 · (6) a² - b³ = 33653.41853 。 。 a²-b²

求解

18. 如圖(十二),數線上A、B兩點的位置分別是3及97,今小明欲將AB分 20 成61等分,其等分點的坐標由小到大依序是a1,a2,as,…………,60;小華 欲將 AB 分成31等分,其等分點的坐標由小到大依序是biba,b, b30。若a1+a2+a3+......+60=Sb+b2+3+....+30=T則下列何 者正確? A 138 小明: 1 1313 -3 a1 a2 a3 小華:+ (A) S=T (C)S=30T 160 A + -3 bi 961 B + a60 97 B + + h₂ b3 b30 97 ㄢˇ 圖(十二) 127 3+95-301x50 27632760 (B)S=2T (D)S=60T 龍 -7- tod 91-75+ 60x2 87 74 hud: 94 Say 42 47 30

想問32題

ar C People of all ages all around the world have been touched by Walt Disney's works and inspired by his rags-to-riches story. His own road to success A29 the positive message the company has been sharing with its fans repeatedly: Never give up on a perfect example of your dreams. 30 drawing as a boy and founded he was faced with Born in 1901, Walt Disney developed a passion the Disney Brothers Cartoon Studio when he was twenty-two. 31. many difficulties and failures along the way, Disney didn't lose faith. One day, a sudden inspiration struck him. He created a joyful little character, Mickey Mouse, that saved his shaky career and helped him build his entire fantasy kingdom. In the years that followed, Disney Studios completed popular animated film after 32 countless iconic characters. 動畫電影 32 If Walt Disney were alive today, he would warmly reassure you and introduced that your achievements depend on your 33 and willingness to keep trying. He would also tell you that sometimes the key lies within your most unexpected daydreams. If you can dream it, you can do it.