Suppose that an insect population’s density, in thousands per acre, during year n, can be modeled by the recursive formula: a1 = 8 an = 2.9an – 1 – 0.2(an – 1)2 Which of the following describes what is happening to the insect population for the first five years? The population density decreases each year. The population density increases each year. The population density remains constant. The population alternates between increasing and decreasing.

6n^2-7n-75=0 solve by quadratic formula

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

You were told that the amount of time lapsed between consecutive trades on the new york stock exchange followed a normal distribution with a mean of 15 seconds. you were also told that the probability that the time lapsed between two consecutive trades to fall between 16 to 17 seconds was 13%. the probability that the time lapsed between two consecutive trades would fall below 13 seconds was 7%. what is the probability that the time lapsed between two consecutive trades will be between 14 and 15 seconds?