How many six-letter sequences are possible that use the letters g, o, b, l, i, n once each?
?
A. 216
B. 120
C. 720
D. 6
E. 36
Answer: C
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Find the limit.
(ln x)3/x
A. 1 B. 0 C. 3 D. e3
Solve the problem.The function 
can be used to determine the milligrams D of a certain drug in a patient's bloodstream h hours after the drug has been given. How many milligrams will be present after 
Round the answer to two decimal places.
A. 2.97 mg B. 1.62 mg C. 0.04 mg D. 607.55 mg
Solve the problem.During the first four months of the year, Jack earned 
and 
If Jack must have an average salary of at least 
in order to earn retirement benefits, what must Jack earn in the fifth month in order to qualify
for benefits? A. at least $848 B. at most $855 C. at least $680 D. at most $820
Recognize the elementary row operation used and determine the missing entry.
? 
A. - 
B. 
C. 4
D. -4