Use the half-angle formulas to evaluate the given function.sin 22.5°
A. 0.1951
B. 0.9238
C. 0.3827
D. 0.5412
Answer: C
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Find the axis of symmetry of the given function.f(x) = x2 - 10x + 27
A. x = 0 B. x = -5 C. x = 5 D. x = 2
Solve the problem.The quadratic function 
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