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數學 高中

求救第55題 完全看不懂他要我幹嘛

Year slenue Req) = 1932 1958 +1000 q R 9)=-1000q =74 1963 1968 COM If the price in dollars of a stereo system is given by 1000 p(q) + 1000, 1000 ² q where q represents the demand for the product, find the mar- ginal revenue when the demand is 10. 54. Profit Suppose that for the situation in Exercise 53 the cost in dollars of producing a stereo systems is given by C(q) = 0.2q2 + 69 + 50. Find the marginal profit when the demand is 10. 59. Marginal Product of Labor The output y of a manufacturing y process is a function of the size of the labor force n using the function 1990 +1000 1971 1974 = 990 197 197 19 19 1 y = kVn. The marginal product of labor, defined as dy/dn, measures the rate that output increases with the size of the labor force, and is a measure of labor productivity. (a) Show that (c) Using the a cubic f respond the rate and 200 (d) Discus descri part ( the y (e) Exp data calc ful x C(x) = 58. Money 1955-7 dy k dn an (b) How can you tell from your answer to part (a) that as the size of the labor force increases, the marginal product of labor gets smaller? This is a phenomenon known as the law of diminishing returns, discussed more in the next chapter. 56. Profit An analyst has found that a company's costs and rev- enues in dollars for a product are given by x2 C and R(x) 2x 2 5000' respectively, where x is the number of items produced. (a) Find the marginal cost function. (b) Find the marginal revenue function. (c) Using the fact that profit is the difference between revenue and costs, find the marginal profit function. (d) What value of x makes the marginal profit equal O? (e) Find the profit when the marginal profit is 0. (As we shall see in the next chapter, this process is used to find marimum profit.) A wher in bi find year (a) (C) (e) nad since

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數學 高中

想問18 19 20

III = n YouTube 109高一適性班_數學+ans .pdf el Google Keep 问 Notion - The all-in-one workspac X 17. 如下圖,在AABC 的兩邊AB 與 AC ,往外側作正五邊形ABDEF 及正五邊形ACGHT 則Z BOP = 度 图 D G B 9 109高一適性班數學+ans.pdf C Gx Google Translate N-'tiffany... 18. 如下圖所示,老師將同學排成7列,其中第2列的人數比第1列多2人,往後每一列的 人數都比它的前一列多2人。接著老師分別將210 顆標上成等差數列:3、10、17、24、,,, 的號碼球依序發給同學,由左而右先發完第1列的同學,再發第2列的同學 依此類推。已知老師發到第7列的最後一位同學剛好將210顆的號碼球發完,請問排在 第6列第17行的同學拿到的號碼球是幾號? X O 3 / 6 第第第 1 2 3 行行行 第1列(3 10 17 A Not secure | www2.tnssh.tn.edu.tw/department/academic/test/108下試題/高一適性班/109高一適性班數學+ans%20.pdf 24 7 WORD UP 第2列 e 34:21 min - Studying and Work " x 第3列 9 80% 第7列 0000 + G Google 0 9 19.一箱中裝有大小都相同的20個號碼球,編號由1號到20 號,今從箱中任意抽取一球 且每球被抽中的機會均等,並將所取到的號碼用來作為二次函數y = x + 3.x + k+1中的k 值。已知直線L的方程式為x+y-5=0,若小華從箱中任意抽取一球,則結果會使二次 函數的圖形與直線L不相交的機率為 O Toggl Track 5 Calendar || 想問13 15 - Clearnote ED D'S 20. 如圖,梯形ABCD,AD // BC,在 AD上取一點E,將A點 沿著 BE 對摺,使得A與重合;再將D點沿著 CE對摺,使 得D與D'重合,CD'與ATE 交於F點,且F在梯形ABCD的 內部。若ZATED' = 16", ZA FC = 60",ZBCF =40",則 ZAEB= 度 X > B + 0 英 Q g以 { 4 | . 1/6/2022 16:43 PM E Reading list ... D ... X

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