E xercise 17.4.3:

The following is a sequence of undo/redo-log records written by two transactions T and U:

; ; ; ; ; ; ; < T ,E , 50,51>; .

Describe the action of the recovery manager, including changes to both disk and the log, if there is a crash and the last log record to appear on disk is:

(a)

(b)

(c) < T ,E , 50,51>

(d) .

Franklin painting company is considering whether to purchase a new spray paint machine that costs $4,800. the machine is expected to save labor, increasing net income by $720 per year. the effective life of the machine is 15 years according to the manufacturer’s estimate. required determine the unadjusted rate of return based on the average cost of the investment.

Seattle bank’s start-up division establishes new branch banks. each branch opens with three tellers. total teller cost per branch is $96,000 per year. the three tellers combined can process up to 90,000 customer transactions per year. if a branch does not attain a volume of at least 60,000 transactions during its first year of operations, it is closed. if the demand for services exceeds 90,000 transactions, an additional teller is hired and the branch is transferred from the start-up division to regular operations. required what is the relevant range of activity for new branch banks

Most states have licensing registration requirements for child care centers and family daycare homes. these usually include minimum standard for operation. which of the following would you most likely find required in a statement of state licensing standards for child care centers?