Andrea's change purse contains 8 quarters 9 dimes and 8 nickels. if she shows two coins randomly without replacing them in her purse what is the probability she chose two dimes?
a) 2/5
b) 3/25
c) 27/200
d) 72/625

Factor the trinomial below. 12x^2 - 32x - 12 a. 4(3x+3)(x-1) b. 4(3x+1)(x-3) c. 4(3x+6)(x-2) d. 4(3x+2)(x-6)

State one method by which you can recognize a perfect square trinomial.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.