In a survey of 200 employees, 65% agreed that the management of the cafeteria should be changed.
if the confidence interval is 95%, the margin of error for this survey is (+/-6.75 or +/-5.06 or +/-3.37)%, and the maximum number of employees who could have agreed is about (144 or 140 or 136) .

Barbara's piano instructors house is 7 1/8 miles from her house. after biking for 1 3/4 miles she stops to rest how much longer does she need to bike to reach her instructor's house

(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 amplitude of a sinusoidal function that models this temperature variation