Find the exact value by using a half-angle identity.tan 165°
A. -2 - 
B. 2 - 
C. 2 + 
D. -2 + 
Answer: D
Mathematics
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Provide an appropriate response.True or false? The graph of Ax2 + Bxy + Cy2 + Dx + Ey + F = 0 is an ellipse if AC > 0 and F < 0.
Answer the following statement true (T) or false (F)
Mathematics
Find the annual amount of depreciation using the straight-line method. Round to the nearest dollar.Cost:$8400Estimated life:8 yearsEstimated scrap value:$600
A. $600 B. $1050 C. $975 D. $75
Mathematics
Simplify using order of operations.
A. 8 B. 10 C. 4 D. -8
Mathematics
The graph of a function is given. Decide whether it is even, odd, or neither.
A. even B. odd C. neither
Mathematics