Solve the problem.How many different 4-letter radio-station call letters can be made if the first letter must be K or W, repeats are allowed, but the call letters cannot end in an O?
A. 35,152
B. 16,900
C. 33,800
D. 456,976
Answer: C
Mathematics
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Use the Comparison Test to determine if the series converges or diverges.
A. diverges B. converges
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If the total cost function for a product is 
dollars, determine how many units x should be produced to minimize the average cost per unit?
??
A. 90 units B. 200 units C. 44 units D. 63 units E. 51 units
Mathematics
Find the derivative of the following function.
?
A. 
B. 
C. 
D. 
E. 
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Perform the indicated operation. Write the result in the form a + bi.(
- 
i) + (
+ 
i)
A. 3 - 2i B. - 1 + 2i C. 1 + i D. 4 - 3i
Mathematics