請問有人會算這題嗎

二、退火處理的低碳鋼鋼板厚度為3mm, 現在利用沖壓模具剪斷一甜甜圈形狀外徑為 15mm,內徑為 5mm 的料件,若荷重-伸長 量圖形如表2所示,請求出低碳鋼鋼板的剪 力強度。 荷重(kg) | 伸長量(mm) 400 800 1200 1600 2000 2400 2800 3200 3600 4000 3800 3000 2800 0.05 0.10 0.15 0.20 0.25 0.30 0.35 0.40 0.45 0.50 0.52 0.525 0.53(斷裂)

求解

告 f(x) 滿足 f'(x)= f(₁ sin x, .5 1 5+sin r’ 大 ∀x ∈ R,且 f(0) = 0,證明 - <f 12 201 L 早上估 小结 () VI 10

求解

對於 a,b ∈ R,令 f(x) = = ax³ 10²+0 b 若 æ≤1 #x> 1° 若f 在 R 可微,求 a,b 之值。

為何這題不能選D?

e present perfect. (A) Or is a conjunction indicating a between items. Choice (B) joins not words. Choices (C) and (D) a contrast between items. M12 Q 123. B .124. 125. (A) Might (B) Unless (C) Should (D) If the patient's condition get worse, the nurse will call in an internist. For reasons of public safety, the firefighters will not respond call is verified. certify (A) and (B) until (C) even (D) because ent (A) withdraw (B) withdrawing (C) withdrawal (D) withdrawn 117. All shareholders must fill out a --- slip in order to get money. (A) to visit (B) visited (C) visiti ------ (A) Knows is t verb for the st the present co pre nerfe in the I will never forget the beautiful country of Thailand during the summer after I graduated from college. 14 13

想問這一題如何計算🥹

3. Consider a perfectly competitive firm with the following short-run total costs: SRTC = 150 + 2q². The corresponding short-run marginal cost is given by: SRMC = 4q. a. If the market price is $80, how much output will the firm produce? b. What will the firm's profits be at a price of $80? c. Find the quantity of output for which marginal cost equals average variable cost. What does this information tell you about this firm's decision about whether to shut down in the short run rather than produce a positive quantity of output?

不好意思可以問一下！這題有沒有會嗎！謝謝🙏

19. 汽車維修花費 汽車維修花費不斷上升,2015 平均維修花費為 $367 (U.S. News & “也是或World Report website)。假定汽車維修花費是常態分配,標準差為 $88。回答以下關 於汽車維修費的問題。 a. 維修花費超過 $450 的機率是多少? b. 維修花費低於 $250 的機率是多少? k c. 維修花費介於$250到$450 的機率是多少? d. 如果你的汽車維修是收費比較低的5%,你必須支出多少錢?

為何第122題不能選if?

e present perfect. (A) Or is a conjunction indicating a between items. Choice (B) joins not words. Choices (C) and (D) a contrast between items. M12 Q 123. B .124. 125. (A) Might (B) Unless (C) Should (D) If the patient's condition get worse, the nurse will call in an internist. For reasons of public safety, the firefighters will not respond call is verified. certify (A) and (B) until (C) even (D) because ent (A) withdraw (B) withdrawing (C) withdrawal (D) withdrawn 117. All shareholders must fill out a --- slip in order to get money. (A) to visit (B) visited (C) visiti ------ (A) Knows is t verb for the st the present co pre nerfe in the I will never forget the beautiful country of Thailand during the summer after I graduated from college. 14 13

在線求解釋

【-重力.pdf 搜尋 4/6 解: 21. 例題 8.4:火箭從地球表面垂直發射,最大高度達到2150 km, 則它的發射速率是多少? 因此 100% 從能量守恆定律出發K+U=Kg+U,位能為U= 8 -GMgm 1 HO Vo = 所以vo = 5.62km/s 2 = mv²- GMem RE 查表得知Rg = 6.37x106m, Mg = 6.42x1023kg,r = Re + 2150km BUS -2GME 2GME 2GME(T-RE) T RE TRE = -GMm 222 P

用隱微分求斜率 12題求詳解

12. √√√xy = x - 2y 13. (x² + y²)² = 8x²y (4, 1) (2, 2)

這是關於島嶼生物地理學的題目，求解

13.某政府設立了四個生態保護區,分別為甲、乙、丙、丁四種不同的設立方 式,如下圖中黑色區域,且四種方案中黑色區域的總面積皆相等,地形氣候等 環境條件相似,試回答下列問題。 保護區。 甲。 Ze 一大區。 兩鄰近中區。 三鄰近小區。 ← 設立方區。 (1)根據所學,哪一個保護區是最好的設計方式?為什麼?(6分) (2)呈上題,該政府打算以最低成本改善生態保護區「戊」如下圖, # J Je 一長區 10 試以圖示展現該如何調整?並簡單說明原因。(4分) 。