Raul deposited 3,000 into a bank account that earned simple interest each year after 3.5 years he had earned 262.50 in interest. if no money was depositied into or withdrawn from the account what was the annual interest rate.

(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.

This graph shows a portion of an odd function. use the graph to complete the table of values. x f(x) −2 −3 −4 −6

The continuous random variable x is uniformly distributed over the interval [–1,3]. find -e(x) -var(x) -e(x²) -p(x < 1.4) a total of 40 observations of x are made.