Express the product as a sum containing only sines or cosines.sin (3?) cos (4?)
A. 
[cos (7?) - cos ?]
B. sin cos (12?2)
C. 
[cos (7?) + sin ?]
D. 
[sin (7?) - sin ?]
Answer: D
Mathematics
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Write the first four elements of the sequence.
A. 1, 
, 
, 
B. 
, 
, 
, 
C. 0, 
, 
, 
D. -1, 1, 
, 
Mathematics
Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by C(x) = 
, what is the unit cost for 40 units?
A. $0.75 B. $-12.50 C. $37.50 D. $16.67
Mathematics
The demand equation is 
.
?
Compute the elasticity of demand and determine whether the demand is elastic, unitary, or inelastic at 
.
?
A. 6; elastic
B. 
; inelastic
C. 5; elastic
D. 
;elastic
Mathematics
Solve for x, where x is a real number.125x = 25
A. 
B. 2
C. 
D. 
Mathematics