Factor the expression.15x3 + 15x2 - 3x
A. 3x(5x2 + 5x - 1)
B. 3x(5x2 + 5x + 1)
C. 3(5x3 + 5x2 - x)
D. 3x(5x2 + 5x - 3)
Answer: A
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Simplify.
- 
+ 
- 
A. 
B. 
C. 
D. 
Select the graph of the function: f(x) = [[x + 3]]. ? ?
A. ?
B. ?
C. ?
D. ?
E. ?
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, 125 g fat, and 153 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. 4 mushrooms, 6 meatballs, 5 eggs B. 6 mushrooms, 5 meatballs, 4 eggs C. 5 mushrooms, 4 meatballs, 6 eggs D. 7 mushrooms, 6 meatballs, 5 eggs
y? = 2y ?1, y (0) = 3, ?x = 0.2
For the initial-value problem, use (a) Euler’s method and (b) the Runge-Kutta method with the given step size ?x to approximate y (2).