Trig! for the function r(x) = 3/4cot(x) the x-intercepts occur at radians.
a. πn
b. 3π/4 + πn
c. π/2
d. π/2 + πn

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

What is the solution to the system of equations? (–2, –8) (–1, –5) (0, –2) (2, 4)

What could explain what happened when the time was equal to 120 minutes