Find the formula for df-1/dx.f(x) = 
x + 
A. x - 
B. 
C. 3
D. 3x - 
Answer: C
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Solve the problem.The Cartesian coordinates of a point are (-1, 1, 3). Find the cylindrical coordinates.
A. 
B. 
C. 
D. 
Simplify the expansion.(4 ? 101) + (0 ? 100)
A. 41 B. 14 C. 4 D. 40
Solve the problem.Assume it costs 25 cents to mail a letter weighing one ounce or less, and then 20 cents for each additional ounce or fraction of an ounce. Let L(x) be the cost of mailing a letter weighing x ounces. Graph y = L(x).
A.
B. 
C. 
D.
Solve the problem using matrices.Ron attends a cocktail party (with his graphing calculator in his pocket). He wants to limit his food intake to 
protein, 147 g fat, and 195 g carbohydrate. According to the health-conscious hostess, the marinated mushroom caps have 3 g protein, 5 g fat, and 9 g carbohydrate; the spicy meatballs have 14 g protein, 7 g fat, and 15 g carbohydrate; and the deviled eggs have 13 g protein, 15 g fat, and 6 g carbohydrate. How many of each snack can he eat to obtain his goal?
A. 9 mushrooms; 6 meatballs; 4 eggs B. 10 mushrooms; 7 meatballs; 5 eggs C. 6 mushrooms; 4 meatballs; 9 eggs D. 4 mushrooms; 9 meatballs; 6 eggs