Solve. Simplify the answer.Barat walked 
mile to his biology class, 
mile to his art class, 
mile to his calculus class, and then back to his dormitory. If he walked 1 mile altogether, how far did he walk from his calculus class to his dormitory?
A. 
mi
B. 
mi
C. 
mi
D. 
mi
Answer: D
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Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation p = -20x + 560, 0 ? x ? 28.What price should the company charge to maximize revenue?
A. $21 B. $14 C. $7 D. $16.8
Identify the abuse of statistics.An airline company advertises that 100% of their flights are on time after checking 5 randomly selected flights and finding that these 5 were on time.
What will be an ideal response?
Evaluate the determinant.
?
?
A. 
B. 
C. 
D. 
E. none of these
Use the Intermediate Value Theorem to determine whether the polynomial function has a zero in the given interval.f(x) = 10x4 + 5x3+ 3x - 6; [-2, -1]
A. f(-2) = -108 and f(-1) = 4; yes B. f(-2) = -108 and f(-1) = -4; no C. f(-2) = 108 and f(-1) = -4; yes D. f(-2) = 108 and f(-1) = 4; no