Answer the question.How many 11 letter strings can be formed with the letters D , E , F , and G , if each letter can be used more than once?
A. 4,194,264
B. 4,194,504
C. 4,194,384
D. 4,194,304
Answer: D
Mathematics
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Solve the problem.A barge takes 4 hours to move (at a constant rate) downstream for 32 miles, helped by a current of 2 miles per hour. If the barge's engines are set at the same pace, find the time of its return trip against the current.
A. 64 hr B. 8 hr C. 6 hr D. 4 hr
Mathematics
Decide whether the ordered pair is a solution of the given system.
x - 2y = -85x - 2y = 26
A. No B. Yes
Mathematics
Find the domain of the rational function.g(x) = 
A. {x|x ? 8, 1} B. {x|x ? 8, 1, -9} C. {x|x ? -8, -1} D. all real numbers
Mathematics
Solve the differential equation.
e. none of these
Mathematics