Find the average of the set of numbers.
and 
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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The function f is one-to-one. Find its inverse.f(x) = 4x + 8
A. f-1(x) = - 
B. f(x) = 
C. f-1(x) = 
D. f-1(x) = 
Mathematics
Solve the problem.Two machines are turned on at 8:00 A.M. If one can produce 39 items each hour and the other can produce 41 items each hour, at what time will they produce a total of 480 items?
A. 2:00 P.M. B. 3:00 P.M. C. 3:30 P.M. D. 1:00 P.M.
Mathematics
Find the indicated probability.A survey resulted in the sample data in the given table. If one of the survey respondents is selected at random, find the probability that the person lives in a flat. 
A. 0.394 B. 0.002 C. 0.255 D. 469
Mathematics
Use mathematical induction to prove the statement is true for all positive integers n.7n > n
What will be an ideal response?
Mathematics