Given sin k = -√3/2 , and 450° <k< 680°, the smallest possible value for k must be degrees. Any one know this stuff?
it's grade 11 Trig

In which form is the following function written? y = - 2(x – 3)(x + 5)

What will the graph look like for a system of equations that has no solution? a. the lines will be perpendicular. b. the lines will cross at one point. c. both equations will form the same line. d. the lines will be parallel.

Secant ac and bd intersect at point e inside f what is the measure of aed if measurements cd equals 30 a b is 50 and cb is 170