Which expression is equivalent to Com430 + 4C1m331 + 4C2m232 + 4C3m+33 +
4C4034?
0 4x4 + 12x3 + 54x2 + 108x + 81
o 4x4 + 12x3 + 54x2 + 108x + 324
O x4 + 12x3 + 54x2 + 108x + 81

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

Asequence {an} is defined recursively, with a1 = 1, a2 = 2 and, for n > 2, an = an-1 an-2 . find the term a241