One student is selected at random from a group of 12 freshman, 16 sophomores,
20 juniors, and 2 seniors. Find the probability that the student selected is:

a)
not a freshman

b)
a junior or a senior

Graph the system: f(x)= 3/x-2; f(x)= 1/2x + 2

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Anna is constructing a line segment that is congruent to another segment ab. for the construction, which tool should be used to mesure segment ab