求解！第一象限不應該是（+,+）嗎 為什麼tan θ是-24/7 正負關係我不太清楚 謝謝！

(顺術 11.如圖所示,已知OP=10,tan0=- 24 24 求P點的直角坐標一十 y' 7% ++ P 24 210 x -- (三)*p=A=7:25:24: 171-Fan :10: 14 14 tan & tan (180-6) A: (+4) 248 PC 14, 48) or P(-11, t) 告

想問這題><

2)某人在O點測量到遠處有一物作等速直線運動。開始時該物位置在P點,一分鐘後, 其位置在Q點,且<POQ=90°。再過一分鐘後,該物位置在R點,且<QOR=30°。 【91年數甲】Ans: 請以最簡分數表示tan²(LOPQ) = 3

想問第二題 這題只能一個一個慢慢找嗎？還是有其他方法？

3 1.若一等腰三角形的三邊長為5、12、x,則x之值為12 。 ADE 2.在長度為10、12、15、20、30五條線段中,任取三線段(不得重複選取)圍成三角形 則可圍成種不同的三角形。 3.110.12.15 10.2.2.0 10.1520 10.15.30 10.12.3.0 D 之估為 10.20.30 12.15.26 12.15.30 15.20.30 8.2134 20 BORAK

為什麼這題選A

(doing the homework)and(listening to music at the same time) a good study habit? Think about it. A Is (B) Are (C) Does (D) Do

幫我畫出正確答案

4. The cross-linking reaction of polyvinyl alcohol forms four water molecules for every B(OH)4 that cross- links two polymer chains. Given the sections of polyvinyl alcohol chains below, sketch how B(OH)4 cross-links the chains. Through what atom chain linkages are the C-C polymer backbones connected? CH CH₂ H O-H O-H H H CH₂ H-O. +B (OH)4 H H CH₂

十萬火急！！想問🙏🏻 明天就要會考了😭😭

13 Some of the knives and forks in the kitchen are dirty. Let's take the clean steak. to cut the (A) them (B) ones (c) other (b) another

求解🙏 謝謝

sure he can get to Lisa's house-warming party at seven on time. (B) where (C) what (A) when 18. Helen went mountain climbing last weekend. She is really good at it; can't reach her at this moment to know if she's safe or not. (A) besides (B) however (C) for example (D) whether we still (D) what's more

想問15、17 orz

(A) are you (B) do you (C) does it (D) is it ✓ ✓ ( ) Actor David Piper became tired of talking about the movie 16. A BD about it many times. 【104年會考】 (A) he is famous B that he is famous ) Helen: after he was interviewed (C) that is famous for (D) he is famous for Can you turn off the TV? I can't study with the Troy: You can just go back to your room so you won't hear it. [103] (A)noise (B) heat (C)power (D)light ) I think the road ends here; it won't go any (A)closer (B) farther (C) faster (D)longer Shouldn't we turn back?【103年會考】 193 A

為什麼這題不是祈始句

going (B) 3. Smart Head, one of the hottest TV programs these days, 通過率 40% Hawaii if they can answer 20 questions correctly in 15 minutes. 如果 (A) have given (B) gives (C) giving 15分鐘內 people free plane tickets to hognibail Juo bail of *表條件: 以現代未 【103.] (D) to give

求解，謝謝🙂

A a small world it is (A) How (B) Why (e) Which (D) What