Solve the system of equations.
A. {(2.9, -4, -4.6)}
B. {(5.8, 4.0, -13.8)}
C. {(2.9, 4.0, 4.6)}
D. {(2.9, 4.0, -4.6)}
Answer: D
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Solve the problem.A 60-m-long, 8.4-mm-diameter rope hangs free from a ledge. The density of the rope is 60 g/m. How much work is needed to pull the entire rope to the ledge?
A. 108g J B. 9g J C. 108,000g J D. 3.6g J
Find all the roots of the complex number. Put answers in standard form.Cube roots of 8j
A. -2j, - 
- j, 
- j
B. -2j, 
+ j, - 
+ j
C. 2j, 
- j, - 
- j
D. 2j, 
+ j, - 
+ j
Solve the problem. Round to the nearest cent.A certain state has a gasoline excise tax rate of 25.3%. How much excise tax is paid on a gasoline purchase of $44.49 if the purchase is before excise tax is added?
A. $16.26 B. $8.26 C. $11.26 D. $0.57
Simplify.
- 
+ 4
A. 
B. 
C. 
D. 