Awarehouse selling cement has to decide how often and in what quantities to reorder. it is cheaper, on average, to place large orders, because this reduces the ordering cost per unit. on the other hand, large orders mean higher storage costs. the warehouse always reorders cement in the same quantity, q. the total weekly cost, c, of ordering and storage is given by c = + 5a/q+3bq, where a, b are positive constants.(a) does the term 5a/q represent the ordering cost or the storage cost? a) ordering cost b) storage cost does the term 3bq rep resent the ordering cost or the storage cost? a) ordering cost b) storage cost (b) what value of q gives the minimum total cost? q=

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

Complete the solution of the equation. find the value of y when x equals to 1 9x-5y=29

Each of the following data sets has a mean of x = 10. (i) 8 9 10 11 12 (ii) 7 9 10 11 13 (iii) 7 8 10 12 13 (a) without doing any computations, order the data sets according to increasing value of standard deviations. (i), (iii), (ii) (ii), (i), (iii) (iii), (i), (ii) (iii), (ii), (i) (i), (ii), (iii) (ii), (iii), (i) (b) why do you expect the difference in standard deviations between data sets (i) and (ii) to be greater than the difference in standard deviations between data sets (ii) and (iii)? hint: consider how much the data in the respective sets differ from the mean. the data change between data sets (i) and (ii) increased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). the data change between data sets (ii) and (iii) increased the squared difference îł(x - x)2 by more than data sets (i) and (ii). the data change between data sets (i) and (ii) decreased the squared difference îł(x - x)2 by more than data sets (ii) and (iii). none of the above