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. 33,800
B. 35,152
C. 456,976
D. 16,900


Answer: A

Mathematics

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Find the center of mass of a thin plate covering the given region with the given density function.The region between the curve y =  and the x-axis from x = 1 to x = 9, with density ?(x) = 

A.  = 5,  = 
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Mathematics

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A. -5, (0, 3) B. 5, (0, 3) C. 3, (0, -5) D. 3, (0, 5)

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Find the inflection points, if any, of the function. Otherwise, answer no solution. ?

What will be an ideal response?

Mathematics