Solve the problem.The production function z for an industrial country was estimated as 
where x is the amount of labor and y the amount of capital. Find the marginal productivity of capital.
A. 3x5y2
B. 10x4y3
C. 6x5y2
D. 5x4y3
Answer: A
Mathematics
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What is the maximum value of 
? Restrict your attention to the horizontal span of 0 to 20. Round your answer to two decimal places.
?
A. 39.13 B. 12.46 C. 42.72 D. 11.30
Mathematics
Use the fundamental identities to simplify the expression.
+ csc ? sin ?
A. 1 B. tan2? C. csc2? D. sec2?
Mathematics
Solve.A recipe calls for 
cup of milk. How much milk should be used to make 
of the recipe?
A. 
cup
B. 
cup
C. 
cup
D. 
cup
Mathematics
Perform the operation. Write the answer as a fraction in lowest terms.
? 
A. 
B. 
C. 
D. 
Mathematics