Find the total surface of a cylinder having base radius 14cm and height 26cm

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Determine whether the points (–3,–6) and (2,–8) are in the solution set of the system of inequalities below. x ? –3 y < 5? 3x + 2 a. the point (–3,–6) is not in the solution set, and the point (2,–8) is in the solution set. b. neither of the points is in the solution set. c. the point (–3,–6) is in the solution set, and the point (2,–8) is not in the solution set. d. both points are in the solution set.