The difference between the squares of two consecutive positive integers is 9. find the integers. (hint: let x and x 1 represent the consecutive integers.)

(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.

Find the length of the radius of a circle with the center at -7+2i and a point in the circle at 33+11i

Suppose you have 10 skittles. 5 green and 5 red. you choose 4 without looking. what is the probability that all 4 skittles will be green?