For the given equation, find the vertex or vertices.r = 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Change the order of integration and evaluate the integral.
A. 
B. 
C. 10,720
D. 
Mathematics
Solve the problem.The following nine tasks (with completion times given in hours) are all independent: 
D(3), E(6), F(4), G(1), H(2), and I(4). Using the critical-path algorithm to schedule this project with four processors results in a finishing time of
A. 9 hours. B. 8 hours. C. 10 hours. D. 12 hours. E. none of these
Mathematics
Use a table or a calculator to evaluate the function. Round to four decimal places.sec 0.2020
A. 0.9797 B. 0.2048 C. 1.0208 D. 0.2006
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics