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A tank contains 4,000 L of brine with 11 kg of dissolved salt. Pure water enters the tank at a rate of 40 L/min. The solution is kept thoroughly mixed and drains from the tank at the same rate. (a) How much salt is in the tank after t minutes? y = kg (b) How much salt is in the tank after 30 minutes? (Round your answer to one decimal place.) y = kg

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can you please help solve this problem: How many electrons are transferred in the following reaction? Ca2+(aq) + 2 Li(s) → Ca(s) + 2 Li+(aq)

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Assume the interest rate is 9% and monthly compounding. 1. You are going to receive 50,000 in 5 years. What is the present value? 2. You are going to receive 1,500 at the end of each month over the next 5 years. What is the present value? Can you show me the inputs of a financial calculator and calculate the answer?

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Question 6: The force required to keep an object $x$ units from its equilibrium position is given by $F(x) = |4\sin(2x)|$. What amount of work is required to move the particle $\pi$ units from its equilibrium position?

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Question 23 The hydrophilic part of a plasma membrane faces both the outside of the cell and the cytoplasm inside. O True O False

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Which is not found in DNA? Group of answer choices adenine cytosine uracil thymine

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If consumers are easily able to resell goods in a market, then A) price discrimination may not be possible. B) firms can practice third degree price discrimination, but not first degree price discrimination. C) firms can more easily practice price discrimination. D) there is no impact on price discrimination, as it is illegal.

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Pharoah Corporation allocates overhead based on direct labor cost. Assume Pharoah expects to incur a total of $1033200 in overhead costs and $840000 in direct labor costs. Actual overhead costs incurred totaled $1054000 and actual direct labor costs totaled $806600. Pharoah's predetermined overhead rate is closest to 100% of direct labor cost. 128% of direct labor cost. 123% of direct labor cost. 98% of direct labor cost.

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Find y in terms of x if \frac{dy}{dx} = 5x and the curve passes through (2,7) A. $y = \frac{5}{2}x^2 - 3$ B. $y = \frac{5}{2}x^2 - 5$ C. $y = \frac{5}{2}x^2 + 3$ D. $y = \frac{5}{2}x^2$

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QUESTION 10 HOUSEHOLD MANAGEMENT was written after England became an industrialized country. All of the following -- except one -- shows the effect of changing to an industrialized way of life. Which one does NOT show the effects of industrialization on Beeton's thinking and writing? A. An emphasis on machinery in descriptions of kitchen equipment and the mechanical in other descriptions. B. The classification of servants' tasks on almost an hour-by-hour basis C. Praise of the glory of God's creation - as in the praise Beeton gives to the fish who are alike wonderful to all who look through Nature up to Nature's God... D. An emphasis on the efficient organization of the home and the methods through which it is run. QUESTION 11 Beeton's HOUSEHOLD MANAGEMENT has a great nostalgia for the former agricultural way of life of England as well as a great interest in history and the historical development of all the subjects she writes about. Identify the examples below as either examples of agricultural nostalgia OR of an interest in history. A. Attention paid to the intricacies of Egyptian attitudes to the cabbage or the practices at Roman banquets. B. Descriptions of a time when every family cured hams and bacons themselves. C. Observations that in Ancient Greece, the Greeks ate bread, wine, and broiled meat. (p. 146) QUESTION 12 Which of the following was TRUE of the middle class in England at the time of Mrs. Beeton? A. The SIZE of the middle class stayed the same between 1851 and 1871. B. The rapid growth of jobs in industry and trade had produced a new middle class (in industry and trade) different from the older professional middle classes (doctors/lawyers) C. There was little to no class mobility in 19th century Britain. The middle class remained sure of its status and position in society D. The long list of servants presented in Mrs. Beeton's book was exactly the number of servants used by most middle-class families.

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