Simplify the rational expression. Find all numbers that must be excluded from the domain of the simplified rational expression.
A. 
, x ? -6, -6
B. 
, x ? - 3
C. - 
, x ? -6, -6
D. 
, x ? - 
Answer: A
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Identify the polynomial as a monomial, binomial, trinomial, or none of these. Give its degree.-15x2
A. Binomial, degree 0 B. Monomial, degree 2 C. Binomial, degree -15 D. Monomial, degree -15
Provide an appropriate response.Solve the following linear programming problem using the simplex method:MaximizeP = 7x1 + 2x2 + x3subject to: x1 + 5x2 + 7x3 ? 8 x1 + 4x2 + 11x3 ? 9 x1 , x2 , x3 ? 0
A. Max P = 56 when x1 = 8, x2 = 0, x3 = 0 B. Max P = 9 when x1 = 1, x2 = 1, x3 = 0 C. Max P = 63 when x1 = 9, x2 = 0, x3 = 0 D. Max P = 0 when x1 = 0, x2 = 0, x3 = 8
Find the requested expression for the function.If x represents the size of the order to replenish an inventory of computers, then the annual inventory cost is given by the function 
Simplify the expression for c(x) by performing the indicated addition.
A. c(x) = 
B. c(x) = 
C. c(x) = 
D. c(x) = 
Use the echelon method to solve the system of two equations in two unknowns.-7x + 30 = 9y 3x + 6y = 15
A. (2, 2) B. (3, 2) C. (3, 1) D. No solution