Solve the problem.If two cards are drawn without replacement from an ordinary deck, find the probability that the second card is red, given that the first card was a heart.
A. 
B. 
C. 
D. 
Answer: D
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Use logic to solve the problem.During vacation time, two students met on a train. One asked the other how old he was. He replied, "The day before yesterday I was 15, and next year I will have my 18th birthday." On what date of the year did the two students meet?
A. Feb 29 B. Dec 31 C. Jan 1 D. Feb 28
Estimate the probability of an event (empirical probability). A pair of fair dice is rolled 50 times and the sum of the dots on the faces is noted.
Estimate the probability that the sum rolled is greater than 9.
A. 
B. 
C. 
D. 
Solve the rational equation. If there is no solution, state this as your answer.
+ 
= 
A. {45} B. no solution C. {0} D. {270}
Solve the problem.A research team collected data concerning a local welfare-to-work program. They found that the more frequently a participant attended weekly group support meetings, the longer he or she would keep the same job. The data are summarized in the graph below. Call the function f.
Does f have an inverse? Why or why not?
A. No, because it fails the horizontal line test. B. No, because it fails the vertical line test. C. Yes, because it passes the horizontal line test. D. Yes, because it passes the vertical line test.