The frequency distribution below shows the grade distribution of students' first exam in a history class. Find the standard deviation of this distribution. Round your answers to one decimal place. F= Frequency, G=grade f=3 g 46-56
f=6 g 57-67
f=10g 68-78
f=7 g 79-89
f=4 g 90-100

At which value in the domain does f(x) =0?

Deshawn uses 3/4 of a box of rice to cook dinner the portion he uses weighs 12 ounces right and solve an equation to find the weight of the full box of rice

(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.