Which explains how to find the radius of a circle whose equation is in the formx2+ y2 = z? the radius is the constant term, zthe radius is the constant term, z divided by 2the radius is the square root of the constant term, zthe radius is the square of the constant term, z

Find the value of x for which line a is parallel to line b

(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.

Which best explains why this triangle is or is not a right triangle ?