Find the solution set of the linear system. Identify inconsistent systems and dependent equations. For dependent equations, write your answer as an ordered triple in terms of z.
A. {(-3, 0, 4)}
B. {(0, -6, 1)}
C. {(3, 0, -4)}
D. {(0, 6, -1)}
Answer: B
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Solve the problem.The owner of a video store has determined that the cost C, in dollars, of operating the store is approximately given by 
where x is the number of videos rented daily. Find the lowest cost to the nearest dollar.
A. $878 B. $622 C. $238 D. $494
Decide whether the statement is true or false. If it is false, tell why.The equation (x - 6)2 - 32 = 0 has two irrational solutions.
A. True B. False; the equation has two rational solutions. C. False; the equation has exactly one real number solution.
The line graph shows the recorded hourly temperatures in degrees Fahrenheit at an airport. Use the graph to answer the question.
At what time was the temperature the lowest?
A. 9 a.m. B. 6 p.m. C. 1 p.m. D. 10 a.m.
Find the exact value of the logarithm using logb bx = x.log 
A. -6 B. 6 C. -5 D. 5