Decide whether the statement makes sense. Explain your reasoning.It is not recommended that you use approximations to solve a problem, because then your solution is only an approximation.
What will be an ideal response?
Does not make sense. Most real problems involve approximate numbers to begin with, so an approximation is often good enough for a final answer. In other cases, an approximation will reveal the essential character of a problem, making it easer to reach an exact solution. Approximations also provide a useful check. If you come up with an "exact solution" that isn't close to the approximate one, something may have gone wrong. (Explanations will vary.)
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Compute the unit binormal vector and torsion of the curve. r(t) = 
A. B(t) = 
, ? = 
B. B(t) = 
, ? = 
C. B(t) = 
, ? = 
D. B(t) = 
, ? = - 
Solve the problem.Twin City Freezer accepts a note with face value of $6560 on June 4. The note is for 90 days at 7% interest. The note is discounted on July 20 at 9%. Find the proceeds.
A. $6599.71 B. $6601.38 C. $6617.69 D. $6543.35
Solve the problem.Ron attends a cocktail party (with his graphing calculator in his pocket). He wants to limit his food intake to 
protein, 118 g fat, and 159 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, 4 meatballs, 3 eggs B. 3 mushrooms, 9 meatballs, 4 eggs C. 10 mushrooms, 5 meatballs, 4 eggs D. 4 mushrooms, 3 meatballs, 9 eggs
Give all possible rational zeros for the polynomial.f(x) = 2x3 - 5x2 + 7x - 23
A. ±1, ±2, ±23, ± 
B. ±1, ± 
, ±2, ± 
C. ±1, ±2, ±23
D. ±1, ±23, ± 
, ± 