Suppose you have the following project digraph. (The numbers in parentheses represent hours.)
Consider the following timeline using two processors.
A. This timeline is an illegal schedule.
B. This is the timeline one gets using the critical-path algorithm.
C. This timeline is an optimal schedule.
D. This is the timeline one gets using the decreasing-time algorithm.
E. none of these
Answer: E
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, compute floor 
, where floor(x) denotes the integer floor (or greatest integer) function.
A. 20 B. 22 C. 19 D. 21
Find the perimeter of the figure.Square
A. 15 mi B. 112.5 mi C. 30 mi D. 40 mi
Estimate an answer to the problem.An advertisement states that television sets are on sale at B&G Electronics. The sale prices are: 
set, $147.99; 
set, $201.95; 
set, $231.99; 27-inch set, $299.97; 
set, $502.97. Estimate the approximate number of 
style="vertical-align: -4.0px;" /> sets that can be bought for $2729. A. 12 B. 19 C. 9 D. 5
Find a general term for the geometric sequence.625, 125, . . .
A. an = 625
n - 1
B. an = 625(5) n - 1
C. an = 625
n - 1
D. an = 625
n - 1