Evaluate the function f(x) = [[3x + 1]] for x = 4.
?
A. f(x) = -4
B. ? f(x) = 4
C. ? f(x) = 11
D. ? f(x) = 13
E. ? f(x) = 12
Answer: D
Mathematics
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Find the exact value using a double-angle identity.cos(120°)
A. - 
B. - 
C. - 
D. 
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Subtract and simplify. Write the answer as a mixed number if possible.11
- 
A. 11
B. 9
C. 10
D. 10
Mathematics
From the list below find the expression, identical for the given.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Solve the problem.The Family Fine Arts Center charges $22 per adult and $14 per senior citizen for its performances. On a recent weekend evening when 571 people paid admission, the total receipts were $9,378. How many who paid were senior citizens?
A. 173 senior citizens B. 308 senior citizens C. 398 senior citizens D. 263 senior citizens
Mathematics