Use half-angle formulas to find the exact value for the following:
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: D
Mathematics
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Provide an appropriate response.The signal frequency was set to 
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Provide an appropriate response.The original cost of an asset minus the accumulated depreciation is equal to the book value of the asset.
A. True B. False
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Factor the expression.x2 + 15x
A. x(x2 + 15) B. x2(1 + 15x) C. x(x + 15) D. No common factor
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Find the vertices of the hyperbola.(y + 4)2 - 16(x + 1)2 = 16
A. (-1, -8) and (-1, 0) B. (1, 0) and (1, 8) C. (0, -7) and (0, 1) D. (1, -4) and (-1, 4)
Mathematics