Solve the problem.Given the demand function q = 863 - 3p, determine the price where demand has unit elasticity.
A. p = 143.83
B. p = 58.76
C. p = 29.38
D. p = 71.92
Answer: A
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Factor completely.15z4 - 8z2 - 16
A. (5z4 + 4)(3z - 4) B. (5z2 + 4)(3z2 - 4) C. (3z4 + 4)(5z - 4) D. (3z2 + 4)(5z2 - 4)
Solve.A board of length 
inches was cut into two pieces. If one piece is 
inches, express the length of the other board as a rational expression.
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Use the vertical line test to determine whether or not the graph is a graph of a function.
A. not a function B. function
Provide an appropriate response.Suppose that you are solving a system of three linear equations by the row echelon method and obtain the following augmented matrix. 
What conclusion can you draw about the solutions of the system?
A. There is not enough information to draw any conclusion about the solutions of the system. B. The system has infinitely many solutions. C. The system has exactly one solution. D. The system has no solutions.