Solve by factoring
x^2-x-30+0

Which of the fallowing best completes the sequence 12,8,5, a) 1 b) 2 c)4 d)0

Look at attachment. has all info needed. need

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable