Find the solution set of the system by graphing the equations by hand. If the system is inconsistent or dependent, say so.
A. (1, -4)
B. (1, 4)
C. (-4, -1)
D. (-4, 1)
Answer: A
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Solve. Round all amounts to one decimal place.3 is what percent of 24?
A. 12.5% B. 800% C. 1.3% D. 0.1%
Use Bayes' rule to find the indicated probability.Two shipments of components were received by a factory and stored in two separate bins. Shipment I has 2% of its contents defective, while shipment II has 5% of its contents defective. If it is equally likely an employee will go to either bin and select a component randomly, what is the probability that a defective component came from shipment II?
A. 0.714 B. 0.222 C. 0.5 D. 0.2
Provide an appropriate response.Consider the following: 
+ 3 = 5 
= 2 (
)2 = 22 x = 4What would have happened if the radical had not been isolated before the principle of squaring was used? Could the equation still have been solved? Why or why not?
What will be an ideal response?
Solve the problem.The pH of a solution ranges from 0 to 14. An acid has a pH less than 7. Pure water is neutral and has a pH of 7. The pH of a solution is given by 
where x represents the concentration of the hydrogen ions in the solution in moles per liter. Find the hydrogen ion concentration if the 
A. 10-5 B. 1.61 C. 0.2 D. 105