數學與統計 大學 6個月以前 想請問一下這題怎麼寫? 感謝各位大神🥺 2. The following table summarizes results from an experiment in which subjects were first classified as smokers or nonsmokers. After these subjects were given a treatment, later they were again classified as smokers or nonsmokers. After-smoker After- non-smoker Before- smoker 40 14 Before- non- smoker 5 80 2-1. How many subjects changed their smoking status after the treatment? 2-2. How many subjects appear to be unaffected by the treatment? 2-3. Using the appropriate frequencies, find the value of the test statistic. 2-4. Using a 0.025 significance level, find the critical value, and make your conclusion. 2-5. Based on the preceding results, do you think this treatment is really benefit to help people quit smoking? 待回答 回答數: 0
數學與統計 大學 1年以上以前 微積分求解感謝 0. [-/5 Points] DETAILS Find the constant a such that the function is continuous on the entire real lir a = g(x) = LARCALC12M 1.4.072. 3sin(x) X a - 5x, X < 0 X≥ 0 待回答 回答數: 0
數學與統計 大學 約2年以前 請問這題怎麼解,感謝🙏 NET POPULATION GROWTH A study indicates that x months from now, the population of a certain town will be increasing at the rate of 10 + 2Vx people per month. By how much will the population increase over the next 9 months? 待回答 回答數: 0
數學與統計 大學 約2年以前 請問這題怎麼解,感謝🙏 RETIREMENT ANNUITY When she is 30, Sue starts making annual deposits of $2,000 into a bond fund that pays 8% annual interest compounded continuously. Assuming that her deposits are made as a continuous income flow, how much money will be in her account if she retires at age 55? 待回答 回答數: 0
數學與統計 大學 2年以上以前 請問這題怎麼解,感謝🙏 - MANUFACTURING At a certain factory, Output Q is related to inputs x and y by the equation y Q = 2x2 + 3x?y2 + (1 + y)3 If the current levels of input are x = 30 and y 20, use calculus to estimate the change in input y that should be made to offset a decrease of 0.8 unit in input x so that output will be maintained at its current level. - 待回答 回答數: 0
數學與統計 大學 2年以上以前 請問這題怎麼解,感謝🙏 ((附答案 41. SUPPLY RATE When the price of certain commodity is p dollars per unit, the manufacturer P is willing to supply x hundred units, where 3p2 - x2 = 12 How fast is the supply changing when the price is $4 per unit and is increasing at the rate of 87 cents per month? 待回答 回答數: 0
數學與統計 大學 2年以上以前 問3-2如何解答 感謝 M (O)五位學生所穿運動鞋的號碼:39,42,3 (M)五隻老鼠跑完迷津的秒數:73,90,82, (M)五位學生的身高:169,152,163,158, 五位教師的月收入: 35000,32000,400 3-2 試證:DX-NX,和2(X-X)=0。 3-3 求4和9的幾何平均數。想像 4和9是長 何平均數代表什麼呢? 3-4 求習題 2-2 英文成績歸類時的中位數。 (Me 待回答 回答數: 0
數學與統計 大學 2年以上以前 求解感謝 4. 已 知 f(x, y, z) = xe’ – yet + zey - 求 fr, (1, -1,0) f(0, 1, 0) 與 xy VZ fz (0,0,1). (0) 待回答 回答數: 0
數學與統計 大學 2年以上以前 求解第45題,後面鉛筆寫的是答案,感謝🙏 Demand In Exercises 43-46, find the rate of change of x with respect to p. See Example 6. 43. P = 2 0.00001.x3 + 0.1x' x > 0 4 = P x = 0 44. p = 0.000001x2 + 0.05x + 1 ' - 4XP X 15 ) 200 2x 0 < x < 200 p = >p²+1 - X 46. p = 500 2x 0 < x < 500 = 2 待回答 回答數: 0
數學與統計 大學 2年以上以前 求反函數 如果能寫過程就好了,感謝 = 26. f(x) = f'()-- = 27. f(x) = 19 - x?, 0 SXS 3 28. f(x) = x2/3, x>0 Y-X x20 +X- = 待回答 回答數: 0