Find the second-order partial derivative.Find fyx when f(x, y) = x5y6 - 
x8y7 + 17x - y.
A. 30x4y5 - 56
x7y6
B. 20x3y6 - 56
x6y7
C. 30x4y4 - 56
x7y5
D. 30x3y4 - 42
x7y5
Answer: A
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Use the geometric series f(x) = 
= 
, for 
< 1, to find the power series representation for the given function (centered at 0). f(x8) = 
A. 
B. 
C. 
D. 
Translate the word statement into a percent proportion. Do not solve.16 is 55% of what number?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Use your estimation skills to pick the most reasonable answer. Do not solve the problem.723.64 - 0.8
A. 722.84 B. 7.2284 C. 0.72284
Write an algebraic equation and use it to solve the problem.A chef has one cheese that contains 5% fat and one cheese that contains 55% fat. How many pounds of each cheese should she use in order to obtain 8 pounds of a cheese mixture that is 35% fat?
A. 4 pounds of the cheese that contains 5% fat and 4 pounds of the cheese that contains 55% fat. B. 3.2 pounds of the cheese that contains 5% fat and 4.8 pounds of the cheese that contains 55% fat. C. 1.6 pounds of the cheese that contains 5% fat and 6.4 pounds of the cheese that contains 55% fat. D. 2.4 pounds of the cheese that contains 5% fat and 5.6 pounds of the cheese that contains 55% fat.