Write an m-file which will use a random number generator to determine the following:

a) the number of iterations it takes for the random numbers to add up to at least 20

b) the number of iterations it takes before a number between 0.8 and 0.85 is produced

c) the number of iterations it takes for the product of two random numbers to produce a number less than 1e-5

Write a method replacekey in the minheap class with the following signature: public void replacekey(integer oldkey, integer newkey) the method will replace the first occurrence of oldkey with the newkey, and restore the min-heap property after the change. if the oldkey does not exist in the heap, the method prints an appropriate message and returns without changing the heap. example: suppose our binary heap object (bh) has the following keys: *** 4 6 7 32 19 64 26 99 42 54 28 then the method call: bh.replacekey (oldkey integer(54), newkey integer(2))

Which one of the following would administrators use to connect to a remote server securely for administration? a. telnetb. secure file transfer protocol (sftp)c. secure copy (scp)d. secure shell (ssh)

Amedian in the road will be marked with a white sign that has a black arrow going to the left of the median. true false