Mathematics, 21.05.2021 17:00 lizz1228
The lifetime of a driver circuit at the front end of device is modeled as Y and the lifetime of the device is modeled as X. It is obvious that the device will cease to operate when the driver circuit fails while the converse is not true. The device may fail even when the driver circuit is working. The joint density of these two life times is:
f(x, y)= K exp(-y/10), 0 < x < y< [infinity]
Obtain the value of K so that f(x, y) is a valid density. Obtain the mean life times of the driver circuit, device. If the device fails, what is the expected lifetime of the driver circuit?
Answers: 3
Mathematics, 21.06.2019 15:30
If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80
Answers: 2
Mathematics, 21.06.2019 18:30
Which of the statements about the graph of the function y = 2x are true? check all of the boxes that apply. the domain is all real numbers x because the exponent of 2 can be any real number when the x-values increases by 1 unit, the y-value multiplies by 2. the y-intercept is (0, 1). the graph never goes below the x-axis because powers of 2 are never negative. the range is all real numbers.
Answers: 1
Mathematics, 21.06.2019 22:30
Iβve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.
Answers: 3
The lifetime of a driver circuit at the front end of device is modeled as Y and the lifetime of the...
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