Graph the integrand and use areas to evaluate the integral.
A. 4?
B. 16
C. 16?
D. 8?
Answer: D
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Factor the difference of cubes.
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A. 
B. 
C. 
D. 
E. 
Solve the problem.Suppose all items in an ice cream truck cost $0.85 per item. (a) Fill in the table with the correct response for the cost f(x) of purchasing x items. (b). Write the linear function that gives a rule for finding the cost. 
A.
(a)  | (b) f(x) = 0.85 |
B.
(a)  | (b) f(x) = 0.85x |
C.
(a)  | (b) f(x) = 0.85x + 0.85 |
D. None of these
Write a system of linear equations in three variables, and then use matrices to solve the system.Ron attends a cocktail party (with his graphing calculator in his pocket). He wants to limit his food intake to 131 g protein, 107 g fat, and 165 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. 6 mushrooms; 2 meatballs; 7 eggs B. 8 mushrooms; 7 meatballs; 3 eggs C. 2 mushrooms; 7 meatballs; 6 eggs D. 7 mushrooms; 6 meatballs; 2 eggs
Graph the solution of the system.2x + y ? 4 y - 1 ? 0
A. 
B. 
C. 
D. 