20241004 2024-10-04

題目：Nick can purchase each milkshake for $2. For the first milkshake purchased Nick is willing to pay $4, for the second milkshake $3, for the thir ...

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20241003 2024-10-03

【題目】：A profit-maximizing firm in a competitive market is able to sell its product for $7. At its current level of output, the firm’s average to ...

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20240930 2024-09-30

題目：When marginal profit equals zero. 答案：profit is maximized

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20240928 2024-09-28

題目：(In C) int x=1; if (x=2) x=3; the value of x is ____. 答案： 3

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20240926 2024-09-26

題目：The statement “An increase in the price of gasoLine will lead to a decrease in the amount purchases” is 答案:：a positive statement. ...

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20240925 2024-09-25

題目：for implicit function 2xy+ex-y-2=01 dy/dx|(0,ln2) 答案： -1-ln2

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