Express the sum or difference as a product of sines and/or cosines.sin (8?) - sin (4?)
A. 2 cos (4?) cos (6?)
B. 2 sin (2?) cos (6?)
C. 2 sin (6?) cos (2?)
D. 2 sin (2?)
Answer: B
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Graph the expression on each side of the equals symbol to determine whether the equation might be an identity.1 + tan2 x = 
A. Identity B. Not an Identity
The given angle is in standard position. Determine the quadrant in which the angle lies.-347°
A. Quadrant I B. Quadrant IV C. Quadrant II D. Quadrant III
Determine whether the graph of the function is symmetric about the y-axis, the origin, or neither of these.f(x) = 3x2 - 2
A. y-axis B. Origin C. Neither
Allocate overhead as indicated. Round to the nearest dollar.Wandell's Engineering allocates an overhead of $44,000 according to the number of employees per department. Find the allocation for each department.Department Number of EmployeesOffice 5Sales 25Field 45Engineering 35
A. $14,000 to Office $10,000 to Sales $18,000 to Field $2000 to Engineering B. $2050 to Office $10,250 to Sales $17,350 to Field $14,350 to Engineering C. $2000 to Office $10,000 to Sales $18,000 to Field $14,000 to Engineering D. $5 to Office $25 to Sales $45 to Field $35 to Engineering