M ABCD is a parallelogram where AB = m and BC = n
В,
F is the midpoint of the line BD.
a) Express FD in terms of m and n.
FD = 0.5(n-m)
A4
E is the point such that ADE is a straight line with AD: DE = k: 1
and F} = 2n - 2 m
b) Find the value of k.
D
+
Note: Please make sure your
final answer says 'k
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Assume that there is a 11% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on four independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?