Find the domain of the rational expression.
A. {x|x is a real number and x ? 7}
B. {x|x is a real number}
C. {x|x is a real number and x ? 3}
D. {x|x is a real number and x ? 3 and x ? 7}
Answer: B
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Solve the proportion two different ways. First in decimal form, then in fraction form. Write your answer in lowest terms.
= 
A. x = 0.02 or x = 
B. x = 0.06 or x = 
C. x = 0.00806667 or x = 
D. x = 0.6 or x = 
Most firms outsource value chain activities with the primary motive of reducing costs.
Answer the following statement true (T) or false (F)
Subtract the fractions. Write the answer in lowest terms.
A. 
B. 
C. 
D. 
Solve the problem.It is 4.7 km from Lighthouse A to Port B. The bearing of the port from the lighthouse is N73°E. A ship has sailed due west from the port and its bearing from the lighthouse is N31°E. How far has the ship sailed from the port? Round your answer to the nearest 0.1 km.
A. 3.7 km B. 2.7 km C. 3.5 km D. 3.1 km