A^2 = 13^2+11^2-2(13)(11)cos(A)

please show your work and explain im confused

Without graphing the linear functions, find the coordinates of the point of intersection of their graphs: y=3x−11 and y=4

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

If f(x) = 6x – 4, what is f(x) when x = 8? a2 b16 c44 d52