Find the second-order partial derivative.Find fxx when f(x,y) = 8x3y - 7y2 + 2x.
A. -28
B. -14
C. 24x2
D. 48xy
Answer: D
Mathematics
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Simplify the fraction.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.The following information on Company X appears in a stock table.
Find the cost to purchase 80 shares of Company X at the day's closing price. Assume that the transaction is broker-assisted and includes typical discount broker's commissions as follows, using Firm B: 
A. $2650.55 B. $2662.59 C. $2651.55 D. $2617.60
Mathematics
Find the vertical asymptotes of the rational function. f(x) = 
A. x = 0, x = -5, x = 5 B. x = -5, x = 5 C. x = 0, x = -25 D. none
Mathematics
Solve the problem.Express the perimeter of the square as a single rational expression.
A. 
B. 
C. 
D. 
Mathematics