Find the derivative of the given function.? = 5(cos-1 3r)2
A. 
B. 
C. 10 cos-1 3r
D. 
Answer: B
Mathematics
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Solve the problem.A ship sails as shown in the diagram. Find its displacement from its original position.
A. R = 227 km, ? = 378.5° B. R = 77.9 km, ? = 144.8° C. R = 26.1 km, ? = 324.8° D. R = 227 km, ? = 198.5°
Mathematics
Evaluate the expression.
? 62
A. 12 B. 216 C. 8 D. 36
Mathematics
Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.You have 152 feet of fencing to enclose a rectangular region. What is the maximum area?
A. 5776 ft2 B. 23,104 ft2 C. 1440 ft2 D. 1444 ft2
Mathematics