Solve the problem.Suppose that P(x) represents the percentage of income spent on food in year x and I(x) represents income in year x. Determine a function F that represents total food expenditures in year x.
A. F(x) = 
(x)
B. F(x) = (P ? I)(x)
C. F(x) = (P + I)(x)
D. F(x) = (I - P)(x)
Answer: B
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Evaluate the radical function. If the function value is not a real number, state so.If f(x) = 
, find f(11).
A. 2 B. 1 C. -2 D. 8
Solve the problem.Find an equation for the level curve of the function f(x, y) = 
that passes through the point 
.
A. 
? 
B. 
= 
C. 
= 4
D. x = 4y
Provide an appropriate response.A television manufacturing company makes two types of TV's. The cost of producing x units of type A and y units of type B is given by the function C(x, y) = 100 + x3 + 64y3 - 96xy. How many units of type A and type B televisions should the company produce to minimize its cost?
Fill in the blank(s) with the appropriate word(s).
Find the x'y' coordinates of the point (10, 9) if the coordinate axes are rotated through 30°.
