What are all of the real roots of the following polynomial? f(x) = x5 + 3x4 + 5x3 + 15x2 + 4x + 12

Given: m zade = 60° and m2cdf = (3x + 15) prove: x = 15

Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.

Which graph or graphs appear to show a sinusoid? < me asap !