The naturalist moves to take another sighting of the same giraffe but now is 71 feet away. What is the angle of elevation that he would find if he used his instrument?

Which graph represents an even function?

Need on this geometry question. explain how you did it.

(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.