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Suppose that copper is being projected to be extracted from a certain mine at a rate...
The rate of sales of a certain brand of bicycle by a retailer in thousands of...
The rate of sales of a certain brand of bicycle by a retailer in thousands of dollars per month is given by s(t) = 28t – 0.3342 where t is the number of months after an advertising campaign has begun. (a) Find the amount of sales, in thousand of dollars, for the first six months after the start of the advertising campaign. Give you answer to three decimal places. $ 432.720 X thousand dollars (b) Find the average sales per...
12. 0/1.53 POINTS PREVIOUS ANSWERS The rate of sales of a certain brand of bicycle by...
12. 0/1.53 POINTS PREVIOUS ANSWERS The rate of sales of a certain brand of bicycle by a retailer in thousands of dollars per month is given by s(e) - 38+ - 0.3322 where t is the number of months after an advertising campaign has begun. (a) Find the amount of sales, in thousand of dollars, for the first four months after the start of the advertising campaign. Give you answer to three dec $ 708.25 X thousand dollars (b) Find...
4. Uranium Mine Extraction (10 points) The owner of a uranium mine hires you as an...
4. Uranium Mine Extraction (10 points) The owner of a uranium mine hires you as an economist and asks you to determine the optimal number of uranium ore which should be extracted from the mine this year (q0) and next year (q1), after which time no mining will be possible. The owner would therefore like to extract all the uranium ore by the end of the second year. There are 60 tons of uranium ore in the ground. The price...
****ONLY NEED THE ANSWER TO PART E**** The owner of a uranium mine hires you as...
****ONLY NEED THE ANSWER TO PART E**** The owner of a uranium mine hires you as an economist and asks you to determine the optimal number of uranium ore which should be extracted from the mine this year (q0) and next year (q1), after which time no mining will be possible. The owner would therefore like to extract all the uranium ore by the end of the second year. There are 60 tons of uranium ore in the ground. The...
A small lake is stocked with a certain species of fish. The fish population is modeled...
A small lake is stocked with a certain species of fish. The fish population is modeled by the function P = 12 1 + 4e−0.4t where P is the number of fish in thousands and t is measured in years since the lake was stocked. (a) Find the fish population after 4 years. (Round your answer to the nearest whole fish.) fish (b) After how many years will the fish population reach 6000 fish? (Round your answer to two decimal...
A small take is stocked with a certain species of fish. The fish population is modeled...
A small take is stocked with a certain species of fish. The fish population is modeled by the function P- 14 1+ 4e -0.80 where P is the number of fish in thousands and t is measured in years since the lake was stocked. (6) Find the fish population after 3 years. (Round your answer to the nearest whole fish) fish (1) After how many years will the fish population reach 7000 fish? (Round your answer to two decimal places.)...
1. Coal is carried from a mine in West Virginia to a power plant in New...
1. Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 76 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean μ = 76 tons and standard deviation σ = 0.5 ton. (a) What is the probability that one car chosen at random will have less than...
Suppose small aircraft arrive at a certain airport according to a Poisson process with rate α...
Suppose small aircraft arrive at a certain airport according to a Poisson process with rate α = 8 per hour, so that the number of arrivals during a time period of t hours is a Poisson rv with parameter μ = 8t. (Round your answers to three decimal places.) (a) What is the probability that exactly 6 small aircraft arrive during a 1-hour period? What is the probability that at least 14 small aircraft arrive during a 1-hour period? What...
(1 point) Suppose that t years from now, one investment plan will be generating profit at the rat...
(1 point) Suppose that t years from now, one investment plan will be generating profit at the rate of P (1) = 90 + 12 hundred dollars per year, while a second investment will be generating P(I) = 258 + 21 hundred dollars per year. a. For how many years does the rate of profitability of the second investment exceed that of the first? Answer: b. Compute the net excess profit, in hundreds of dollars, assuming that you invest in...
a. Coal is carried from a mine in West Virginia to a power plant in New...
a. Coal is carried from a mine in West Virginia to a power plant in New York in hopper cars on a long train. The automatic hopper car loader is set to put 75 tons of coal into each car. The actual weights of coal loaded into each car are normally distributed, with mean μ = 75 tons and standard deviation σ = 1.6 ton. (a) What is the probability that one car chosen at random will have less than...
The rate of sales of a certain brand of bicycle by a retailer in thousands of dollars per month is given by s(t) = 28t – 0.3342 where t is the number of months after an advertising campaign has begun. (a) Find the amount of sales, in thousand of dollars, for the first six months after the start of the advertising campaign. Give you answer to three decimal places. $ 432.720 X thousand dollars (b) Find the average sales per...
12. 0/1.53 POINTS PREVIOUS ANSWERS The rate of sales of a certain brand of bicycle by a retailer in thousands of dollars per month is given by s(e) - 38+ - 0.3322 where t is the number of months after an advertising campaign has begun. (a) Find the amount of sales, in thousand of dollars, for the first four months after the start of the advertising campaign. Give you answer to three dec $ 708.25 X thousand dollars (b) Find...
A small take is stocked with a certain species of fish. The fish population is modeled by the function P- 14 1+ 4e -0.80 where P is the number of fish in thousands and t is measured in years since the lake was stocked. (6) Find the fish population after 3 years. (Round your answer to the nearest whole fish) fish (1) After how many years will the fish population reach 7000 fish? (Round your answer to two decimal places.)...
Suppose small aircraft arrive at a certain airport according to a Poisson process with rate α = 8 per hour, so that the number of arrivals during a time period of t hours is a Poisson rv with parameter μ = 8t. (Round your answers to three decimal places.) (a) What is the probability that exactly 6 small aircraft arrive during a 1-hour period? What is the probability that at least 14 small aircraft arrive during a 1-hour period? What...
(1 point) Suppose that t years from now, one investment plan will be generating profit at the rate of P (1) = 90 + 12 hundred dollars per year, while a second investment will be generating P(I) = 258 + 21 hundred dollars per year. a. For how many years does the rate of profitability of the second investment exceed that of the first? Answer: b. Compute the net excess profit, in hundreds of dollars, assuming that you invest in...
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