How many sides does a polygon have if the sum of its angles is 
.
?
A. 17 sides
B. 16 sides
C. 10 sides
D. 13 sides
E. 12 sides
Answer: E
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Use logarithmic differentiation to find the derivative of y with respect to the independent variable.y = xln x
A. 2xln x - 1ln x
B. 
2
C. 
D. xln x - 1ln x
Solve the problem.A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 110 feet from a piling that is directly across from a pier on the other side of the lake. From his transit, the angle between the piling and the pier is 65°. What is the distance between the piling and the pier to the nearest foot?
A. 51 feet B. 46 feet C. 236 feet D. 100 feet
Multiply and simplify. Assume that all variables in a radicand represent positive real numbers.
? 
A. 3
B. 18
C. 6
D. 
Calculate and write the result as a decimal.
(-3.1629)
A. -1.4331
B. -1.4376
C. -1.43
D. -1.43