1. The food service manager at a large hospital is concerned about maintaining reasonable food costs.The table below lists the cost per serving, in cents, for items on four menus.[Menu Meat Potato Vegetable Salad Dessert]145.296.6310.947.428.0153.784.959.836.1612.56We can think of the content of this ma-347.138.4712.668.299.43451.647.1211.579.3510.72trix as a 4 x 5 matrix M. On a particular day , a dietician orders 65 meals from menu 1, 48 frommenu 2, 93 from menu 3, and 57 from menu 4. Consider the row matrix (1 x 4) called N. Explain inwords what the entries in the product matrix N M represents.

Given table lists the cost per serving in cents for items on four menus.…

Answered: 1. The food service manager at a large…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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A certain city's power company charges their residents for electricity usage on a daily basis. There is a basic charge of 11.57 cents. For each day the first 10 kWh cost 4.81 cents per kWh and any additional kWhs are 9.69 per kWh. (A kWh, or kilowatt-hour, is a unit of energy.) (a) Complete the following table using the information provided above. kWhkWh 0 5 10 15 20 cost (dollars)cost (dollars) kWhkWh 25 30 35 40 cost (dollars)cost (dollars) (b) We can define a piecewise function f(x)f(x) where xx is the kWh used in a day and f(x)f(x) is the cost, in dollars. This function would have the form f(x)={g(x)h(x)ififx∈Ax∈Bf(x)={g(x)ifx∈Ah(x)ifx∈B What functions g(x)g(x) and h(x)h(x) make up the piecewise function f(x)f(x)? g(x)=g(x)= for A = h(x)=h(x)= for B = Hint: A and B are intervals. If an interval uses ±∞±∞ write inf or -inf . (c) Using the above function, what is the cost of 26 kWh? dollars. (d) For 3 dollars, what is the maximum kWh usage for one…
5 Imagine that a company sells portable walkie-talkie radios to construction crews. The batteries for these radios last for an average of 55 hours. The purchasing manager for this company receives a brochure in the mail that advertises a new brand of batteries. This new brand of batteries is cheaper than the brand that the company currently uses. However, the purchasing manager is concerned that the cheaper batteries may have a shorter average battery life than the current brand. (Note: The number of hours that batteries last is called their battery life.) The pricing manager installs 40 randomly selected batteries of the cheaper brand in the company's walkie-talkie radios. He finds that the mean battery life for the sample is 52 hours, with a standard deviation of 10 hours. He wants to perform a statistical test at the 1% level of significance to determine whether the cheaper batteries have a shorter average battery life span than the average life span of the brand of batteries the…
12. the price was about what in 1984
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Q 4: Answer the questions below using the following Table 1: MC ($) 7,259 6,548 5,838 5,125 4,417 3,706 MC ($) 6,541 6,821 7,102 7,383 7,664 7,945 AC ($) Total cost ($) 105,311,250 202,070,000 Students Undergraduate 13,750 27,500 41,250 55,000 68,750 82,500 Students 7,659 7,348 7,038 6,727 6,417 6,106 369,985,000 441,168,750 503,745,000 Total cost ($) 33,385,000 51,697,000 AC ($) 12,140 9,399 8,672 8,365 8,249 8,228 Graduate 2,750 5,500 8,250 11,000 13,750 16,500 92,015,000 113,423,750 135,762,000 What are the main differences between the universities' cost structures for undergraduate and graduates? Can you explain the differences that you have identified in 4 (a)? (a) (b) (c) The new Vice Chancellor has asked you for advice on whether she should consolidate or expand the programs. Provide your advice using the information in the table. (d) What is the effect of the introduction of a license fee of 9 million dollars by the government for undergraduate programs being offered by…
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