求這題的過程🙏謝謝

單元7雙曲線 7. 雙曲線 + -=1的焦點為 4(0,-13), B(0,13)。已知C為雙曲線上一點且 144 25 LACB = 60°,求△ABC的面積。 Sub($14413 解▶

這題要怎麼算？ 謝謝

Subject ▶ 10. 如圖所示,直角三角形 ABC 中,∠C= 90°, DE 是 AB 的垂直平分線,∠CAD: ∠DAB=2:1, 則∠B 的度數為多少? [解] () D E Date M B 2. 下圖表示一個由相同小立體塊搭成的幾

9～11題 請大家幫幫忙

98 H.雙向溝通自然 四 )9.在水平桌面上由左至右放置了甲、乙、丙、丁四個完全相同的木塊,今對四個木 塊施以不同的水平力,木塊均靜止不動,如下圖所示。下列哪一個本塊所受向左 的摩擦力最大? 圈( 甲 3N 5N 乙 10N 請閱讀下列敘述後,回答12~14.題: 做摩擦力 丙 7N 点 水平桌面 10N (A)甲(B)乙(C)丙(D)丁 塞(②)10.姿安使用筷子夾起一顆滷蛋,靜止於空中,而滷蛋不會掉下來,請問這是什麼原 因? 丁 (A) 筷子夾滷蛋時的動摩擦力大於滷蛋重量 (B) 筷子夾滷蛋時的動摩擦力等於滷 蛋重量 (C) 筷子夾滷蛋時的靜摩擦力大於滷蛋重量 (D) 筷子夾滷蛋時的靜摩擦 力等於滷蛋重量 12N Q. 1₁. 11. 一塊質量為 1kg 的木塊分別在甲、乙兩水平桌面 上所測量的最大靜摩擦力如右表所示。將此木塊 1.0 靜置於桌面甲上,施予大小為1.0N 的水平力,另 將此木塊靜置於桌面乙上,施予大小為0.5 的水平力,則關於此木塊在兩桌面 上的運動狀態及所受摩擦力大小,下列敘述何者正確? 【110 國教會考補考】 (A) 在桌面甲上會移動,摩擦力大小為1.0NB)在桌面甲上移動,摩擦力大小 為 1.0N (C) 在桌面乙上會移動,摩擦力大小為0.5 (①) 在桌面乙上不移動, 擦力大小為0.5 厭物體 桌面 最大靜摩擦力(N) 甲 0.5 乙 拉力(公克重) MITSUBISHI UM-151 - 6-3 〈學習内容> 學習內容 Eb-IV-5 壓力的 壓力的測量 1. 壓力的定義:物體 2. 公式:若以F代表物 物體所受的 受力面 壓力=- 3. 單位:kgw/cm²、gw. 例:(1) 30gw 的力垂 (2) 30gw 的力垂」 的解 : (1) 3gw/cm² 由以上例題可以看出孩 壓力,是作用在面積為 4. 討論: (1) 若所受的垂直力一定 例: 直立的木塊 平放者為大。 削好之鉛筆比 掌上痛。

急需❗️想問一到三題🥲

CH 7 Exercise (B) .. 12 Ex 1. A company borrowed $100 from a bank on 12/1, annual interest rate is 12%. The company need to repay the loan within a year. Please do the entry on 12/1 and accrued interest expense on 12/31 for the company Ex2. A company borrowed $1,000 form a bank. It is a long-term loan of five years from 1/1/2001 to 12/31/2005, which needs to be converted to a current liability at the end of 2004. Please do the reclassification entry on 12/31/2004. Ex3. A subscriber (customers) ordered a magazine and paid in advance for subscription. The subscriber paid 120 for one year on 7/1/2023. Please do the entries for the publisher on 7/1/2023 and 12/31/2023. Ex4. An applicant buy an accident insurance with coverage period of a year and paid $24C on 8/1/2020. Please do the entries for the insurance company on 8/1/2020 and 12/31/2020. Ex5. real estate tax bills $1,100 for 2022 are not issued until April of the following year an are payable in May. Thus, do an entry for accrued property tax on 12/31/2022 and 5/31/2023.

想問這兩題如何解~謝謝

r Algebra (...* Juny > N Problem 2 35 points B Please find by the back substitution method if Bx = (6,0, 9, 10) and 2 0 -1 2 2 0 3 Problem 3 A = 0 P 2 0 1 2 1 04 -1 2 16 -2 4 iH -1 -1 2 -1 30 points Find basis vectors of C(AT) and N(A) if 3 2 3 1 5 -1 2 with the help of results obrained in Problem 1.

請問大一統計學這兩題有人看得懂嗎🥲

2. To study the attitude of mother and father towards their daughter participating in the outdoor games, a sample of 200 fathers and 250 mothers was investigated. In these two samples, 120 fathers and 50 mothers preferred their daughter to go for outdoor activities. Can it be concluded at a=0.01 level of significance that the proportion of father is significantly higher than that of mother in preferring their daughters for outdoor activities? 3. A firm has a generous but rather complicated policy concerning end-of-year bonuses for its lower-level managerial personnel. The policy's key factor is a subjective judgment of "contribution to corporate goals." A personnel officer took samples of 24 female and 36 male managers to see whether there was any difference in bonuses, expressed as a percentage of yearly salary. The data are listed here: Gender Bonus Percentage Female 9.2, 7.7, 11.9, 6.2, 9.0, 8.4, 6.9, 7.6, 7.4, 8.0, 9.9, 6.7, 8.4, 9.3, 9.1, 8.7, 9.2, 9.1, 8.4, 9.6, 7.7, 9.0, 9.0, 8.4 10.4, 8.9, 11.7, 12.0, 8.7, 9.4, 9.8, 9.0, 9.2, 9.7, 9.1, 8.8, 7.9, 9.9, 10.0, 10.1, 9.0, 11.4, 8.7, 9.6, 9.2, 9.7, 8.9, 9.2, 9.4, 9.7, 8.9, 9.3, 10.4, 11.9, 9.0, 12.0, 9.6, 9.2, 9.9, 9.0 (1) Is there significant evidence that the mean bonus percentage for males is larger than the mean bonus percentage for females? Use a a=0.05. (2) Estimate the difference in the mean bonus percentages for males and females using a 95% confidence interval. Male

請問這一題為什麼是C不是B呢

Be 16. he knows a lot more about the subject than his professors. (B) A student (D) Student though he is as was he (A) He is a student (C) Student as he is

求教學

學號: 1. Find the average utility possibilities of subgame perfect equilibria for Market Niches played four times if the firm use only pure strategies. How close can you get to (3,3) with four repetitions? Firm 2 Firm 1 A B A (3,3) (4,1) B (1,4) (0,0) (A,A)

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Laser welding is a technique in which a tightly focused laser beam is used to deposit enough energy to weld metal parts together. Because the entire process can be automated, it is commonly used in many large-scale industries, including the manufacture of automobiles. In order to achieve the desired weld quality, a particular pair of steel parts being joined must absorb energy at a rate of about 1.1 x 104 W/mm². A common laser welding system employs a Nd:YAG laser operating at a wavelength of 1.064 µm. At this wavelength, this particular set of steel parts will absorb about 80.% of the incident photons. If the laser beam is focused to illuminate a circular spot with a diameter of 0.020 in, what is the minimum power (in watts) that the laser must emit to reach the 1.1 × 104 W/mm² threshold? (Recall that 1 W = 1 J/s.) W How many photons per second does this correspond to? (For simplicity, assume that the energy from the laser does not penetrate into the metal to any significant depth.) Submit Answer Try Another Version 1 item attempt remaining

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When a helium atom absorbs light at 51.31 nm, an electron is promoted from the 1s orbital to a 6d orbital. Given that the ionization energy of (ground state) helium is 2372 kJ/mol, find the longest wavelength (in nm) of light that could eject an electron from the excited state helium atom. nm Submit Answer Try Another Version 2 item attempts remaining