Region R is revolved about the x-axis to form a solid of revolution whose cross sections are washers. What is the outer radius of a cross section of the solid at a point x in [0, 4]

(c) the diagram shows the first three shapes of a matchsticks arrangement.first shape = 3second shape = 5third shape = 7given m represents the number of matchstick used to arrange the n'th shape.(i) write a formula to represent the relation between m and n. express m as the subjectof the formula.(ii) 19 matchsticks are used to make the p'th shape. find the value of p.

Convert (-3,0) to polar form. a. (3,0’) b. (-3,180’) c. (3,180’) d. (3,360’)

What is the solution to the system of equations? y=1.5-3 y=-x