Determine if the given ordered triple is a solution of the system.(-5, -1, 5)3x + 2y + z = 82x - 3y - z = 184x + y + 5z = -6
A. solution
B. not a solution
Answer: B
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The graph of a function f is given. Use the graph to answer the question.How often does the line y = 4 intersect the graph?
A. once B. twice C. three times D. does not intersect
Solve the problem. Round your answer to the nearest tenth, if necessary.Two pipes together can fill a large tank in 10 hr. One of the pipes, used alone, takes 15 hr longer than the other to fill the tank. How long would each pipe take to fill the tank alone?
A. 25 hr; 40 hr B. 15 hr; 30 hr C. 10 hr; 25 hr D. 12.5 hr; 27.5 hr
Find fraction notation for the percent notation in the problem.A serving of cooked white rice provides 5% of the daily requirement of an essential mineral.
A. 
B. 
C. 
D. 
Suppose that John hands you a coin to flip and wants to bet on the outcome. Now, John has tried this sort of thing before, and you suspect that the coin is "rigged." You decide to test this hypothesis by taking a sample. You flip the coin twice, and it is heads both times. You say, "Aha, I knew it was rigged!" John replies, "Don't be silly. Any coin can come up heads twice in a row."
? The following scheme was devised to allow fair results even if the coin is somewhat biased. The coin is flipped twice. If it comes up heads both times or tails both times, it is flipped twice again. If it comes up heads-tails, this will decide the outcome in favor of the first party; and if it comes up tails-heads, this will decide the outcome in favor of the second party. Will this result in a fair toss even if the coins are biased? ? A. No B. Yes