Solve the application problem.The formula 
represents the number of households N, in thousands, in a certain city that have a computer x years after 1990. According to the formula, in what year were there 97 thousand households with computers in this city?
A. 1997
B. 1994
C. 1995
D. 1996
Answer: D
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Give the mathematical formulation of the linear programming problem. Graph the feasible region described by the constraints and find the corner points. Do not attempt to solve.Suppose an horse feed to be mixed from soybean meal and oats must contain at least 200 lb of protein and 40 lb of fat. Each sack of soybean meal costs $20 and contains 60 lb of protein and 10 lb of fat. Each sack of oats costs $10 and contains 20 lb of protein and 5 lb of fat. How many sacks of each should be used to satisfy the minimum requirements at minimum cost?
What will be an ideal response?
For the given function f(x), find f-1(x). State the domain of f-1(x).f(x) = (x + 16)2 - 5 (x ? -16)
A. f-1(x) = 5x2 + 16, x ? 0
B. f-1(x) = 
+ 5, x ? -16
C. f-1(x) = 
- 16, x ? -5
D. f-1(x) = 
+ 16, x ? 5
Show that B is the inverse of A. Show all your work.
?
What will be an ideal response?
Estimate the sum or difference by first rounding as indicated.Estimate by first rounding to the nearest thousand.469097158781
A. 27,000 B. 27,400 C. 27,500 D. 28,000