Find any relative extrema.f(x, y) = x2 - y2
A. No relative extrema
B. f(1, 1) = 0, relative maximum
C. f(0, 0) = 0, relative maximum
D. f(0, 0) = 0, relative minimum
Answer: A
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?In a scale drawing, 1/4" represents 10 miles. Which of the following is true?
A. ?An inch represents 20 miles. B. 6 miles is represented by 1/8". C. 3 miles is represented by 1/16" D. ?4 miles is represented by 1/10" E. ?5 miles is represented by 1/6".
Simplify the expression.
A. 14
B. 
C. 
D. 5
The population of the Earth is approximately 7 billion people and is growing at an annual rate of 2%. Assuming a Malthusian growth model, by what factor will the current population of the Earth increase in 50 years? Round to the nearest hundredths. ?
A. 19.03 B. 2.00 C. 7.00 D. 2.72 E. 7.72
Solve the equation.
= 3 + 
A. {-1} B. {5, 8} C. {-5, -8} D. ?