Evaluate the expression.
?
?
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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The graph of a function f is given. Use the graph to answer the question.For which of the following values of x does f(x) = 15?
A. 15 B. -25 C. 40 D. 0
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Multiply and simplify.(1 + cot ?)2
A. cos2? - cot ? B. csc2? + 2 cot ? C. 1 + 2 sin2? D. sin ? + csc ?
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Solve the problem.Biologists banded five out of every twenty wild ducks. What percent were not banded?
A. 15% B. 5% C. 75% D. 25%
Mathematics