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The manager of a large apartment complex knows from experience that 90 units will be occupied if the rent is 444 dollars per month. A market survey suggests that, on the average, one additional unit will remain vacant for each 6 dollar increase in rent. Similarly, one additional unit will be occupied for each 6 dollar decrease in rent. What rent should the manager charge to maximize revenue.
You are driving to Columbia, SC and due to a traffic jam can only go 30 Mph for the first 20 miles. After that you drive the remaining 90 miles at 60 mph. Sketch a graph of distance versus time and one of speed versus time.
In a survey of 700 randomly selected workers, 16 percent got their jobs through newspaper ads. Consider hypothesis test that uses 0.05 significance level [95 percent confidence interval], test the claim that less than 20 percent of workers got thei..
Estimate the minimum sample size needed to estimate the population mean with the stated accuracy. Show all work.
For this problem please state the method you used and show the work required to obtain the answer. Find the general solution for each of the systems:
A canyon is 2000 meters deep at its deepest point. A rock is dropped from the rim above this point. Write the height of the rock as a function of time t in seconds. (Use -9.8 m/s2 as the acceleration due to gravity.) How long will it take the rock..
Find the probability of the indicated results Less than 259 heads
A company finds that its profits can be modelled with the formula P = 67.2x - 4.2x2, where P is the profit in millions of dollars and x is the production (in thousands of units). At what profit level is the model valid? Hint: Look at the discrimin..
F(x,y,z)= S is the hemisphere x^2 + y^2 + z^2=9, z is greater than or equal to 0, oriented upward. Use Stoke theorem to evaluate double integral curl F *dS
on friday a local hamburger shop sold a c ombined total of 426 hamburgers and cheeseburgers. The number of cheeseburgers sold was two times the number of hamburgers sold. how many hamburgers were sold on friday?
Find the sample size: We desire to be within plus or minus 4 units. We will have a 95% confidence interval and the population standard deviation is 15. What is the estimated sample size?
A 25-by-33-inch sheet of paper is to be used for a poster, with the shorter side at the bottom. The margins at the sides and top are to have the same width, and the bottom margin is to be twice as wide as the other margins. Find the width of the m..
Isomorphisms and automorphisms, This week lecture is taught about Isomorphism, automorphism and Inner automorphism, but I don't understand what they are.
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