Use the order of operations to simplify the expression.
2 ? 
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.A certain noise has an intensity I of 
. Given that decibel level D is related to intensity by 
, where I0 is 10-12, determine the decibel level of the noise. Round to the nearest decibel.
A. 85 decibels B. 8 decibels C. 195 decibels D. 75 decibels
Use the brute force algorithm to find a minimum Hamilton circuit for the graph. Also, determine the total weight of the minimum Hamilton circuit.
A. Minimum Hamilton circuit is W ? Z ? X ? Y ? W; weight = 60 B. Minimum Hamilton circuit is W ? X ? Z ? Y ? W; weight = 79 C. Minimum Hamilton circuit is W ? X ? Y ? Z ? W; weight = 60 D. Minimum Hamilton circuit is W ? Y ? X ? Z ? W; weight = 67
Simplify.
A. 
B. 
C. 
D. 
Use the elimination method by addition to find the solution for the following system.
A. x = 2, y = 24, z = -25 B. x = -4, y = 5, z = 11 C. x = 4, y = 5, z = -5 D. The system is inconsistent.