Solve the problem.A company estimates that the daily cost (in dollars) of producing x chocolate bars is given by 
Currently, the company produces 280 chocolate bars per day. Use marginal cost to estimate the increase in the daily cost if one additional chocolate bar is produced per day.
A. $0.26
B. $0.32
C. $32.00
D. $26.40
Answer: A
Mathematics
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Evaluate the integral.
A. 1
B. 
C. 
D. Diverges
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Solve the problem.Solve the formula V = ?r2h + 
?R2h for r by writing it in the form ar2 + br + c = 0 and then using the quadratic formula.
A. r = ± 
B. r = ± 
C. r = ± 
D. r = ± 
Mathematics
Use the Binomial Theorem to expand the binomial.(x+ 4y)4
A. x4 + 16x3y + 96x2y2 + 256xy3 + 256y4 B. x4 + 4x3y + 6x2y2 + 4xy3 + y4 C. x4 + 16x3y + 96x2y2 + 16xy3 + 256y4 D. x4 + 4x3y + 96x2y2 + 128xy3 + 256y4
Mathematics
Divide. Simplify your answer.
A. 
B. 
C. 5a7
D. 
Mathematics