Solve the problem.Suppose that P(x) represents the percentage of income spent on clothing in year x and I(x) represents income in year x. Determine a function C that represents total clothing expenditures in year x.
A. C(x) = 
(x)
B. C(x) = (P + I)(x)
C. C(x) = (I - P)(x)
D. C(x) = (P ? I)(x)
Answer: D
Mathematics
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Find the approximate value of the expression with a calculator. Round your answer to three decimal places.cot-1 (1.3965)
A. 3.763 B. 2.521 C. 0.950 D. 0.621
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Find the square.
2
A. 4x2 + 
xy + 
y2
B. 4x2 + 
y2
C. 2x2 + 
xy + 
y2
D. 4x2 + 
xy+ 
y2
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Draw the graph of the equation.3x2 + 4y2 - 18x + 40y + 115 = 0
A. 
B. 
C. 
D. 
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Evaluate.6 - 9x for x = -8
A. 78 B. 5 C. -66 D. -11
Mathematics