The signal sequence xi for 0< i <4 is given by vector (0, 2, 4, 6, 8). The DFT value X0=_______
Fill in the blank(s) with the appropriate word(s).
X0 = ?xi = 0+2+4+6+8= 20
You might also like to view...
The output produced in bushels and the prices of this output ($/bushel) over the last three years for Seth Johnson, a farmer in Amarillo, Texas, are as follows:
Let the base year be 2011. What is the price index for 2012?
A) 0.914
B) 1.207
C) 1.094
D) 0.8
If a hamster is making a chattering noise with its teeth, it wants to be picked up
Indicate whether the statement is true or false
Determine the distance required to transition pavement cross-slope from a normal crown section with a normal crown cross-slope of 2% to superelevation of 6% on a two-lane highway with a design speed of 50 mi/h.
What will be an ideal response?
An Australian steel company, ASM International, claims that a savings of 40% of the cost of stainless steel threaded bar can be achieved by replacing machined threads with precision weld depositions. A U.S. manufacturer of rock bolts and grout-in-fittings plans to purchase the equipment. A mechanical engineer with the company has prepared the following estimates for additional costs and savings over the next 4 years (16 quarters). Costs decrease for some time, then increase rapidly as the equipment ages. Savings peak at $80,000 for some quarters, but then decrease as expected competition takes its toll. The U.S. manufacturer president is not sure of the time frame to plan for the use of this new technology. The decision, in part, rests upon the rate of return achievable as the
years of use progress. In the past, projects must return at least 24% per year to be retained.
(a) Determine the expected rate of return per quarter for 2 years (8 quarters) and beyond using a spreadsheet.
(b) Plot i* versus quarter to graphically illustrate your results.
(c) Make a recommendation on the number of years to use the technology to economic advantage.
 FIGURE 1.png)