Find the product of the complex number and its conjugate.-4 - i
A. 41
B. 21
C. -9
D. 11
Answer: B
Mathematics
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Solve the problem.A company finds that consumer demand quantity changes with respect to price at a rate given by 
Find the demand function if the company knows that 806 units of the product are demanded when the price is $5 per unit.
A. D = 
+ 306
B. D = 
+ 306
C. D = 
+ 806
D. D = 
+ 806
Mathematics
Solve the system by substitution or elimination. If a system is inconsistent or has dependent equations, say so.x - 3y = 136x - 4y = -6
A. {(5, -5)} B. {(-5, -6)} C. {(-6, -5)} D. ?; inconsistent system
Mathematics
Find the foci of the given hyperbola.y2 - x2 - 12y + 10x - 25 = 0
A. (5 + 6
, 6), (5 - 6
, 6)
B. (5, 6 + 6
), (5, 6 - 6
)
C. (0, 6
), (0,- 6
)
D. (5, 6 + 
), (5, 6 - 
)
Mathematics
Simplify the expression.7291/3
A. 6,561 B. 9 C. 19,683 D. 27
Mathematics