Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?
A. $300
B. $0.60
C. $1
D. $100
Answer: B
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Solve the inequality. Graph the solution set and write the solution set in interval notation.x2 + 2x - 3 > 0
A. (1, ?)
B. (-?, -3) ? (1, ?)
C. (-3, 1)
D. (-?, -3)
Find the best buy and give the unit price.Brand X 12 oz for $4.20Brand Y 9 oz for $2.97
A. Brand X, $0.35 B. Brand Y, $0.35 C. Brand Y, $0.33 D. Equal value
Solve the problem.It takes 17 minutes to set up a candy making machine. Once the machine is set up, it produces 15 candies per minute. Use an inequality to find the number of candies that can be produced in 2 hours if the machine has not yet been set up.
A. at most 30 candies B. at most 1785 candies C. at most 510 candies D. at most 1545 candies
Use the premises to give a conclusion that yields a valid argument.If it's not Saturday, then Dad shaved. If Dad has whiskers, then he did not shave. If it's Saturday, then Dad will take us to the game.
A. If Dad takes us to the game, then he has whiskers. B. If Dad did not shave, then he has whiskers. C. If Dad has whiskers, then he will take us to the game. D. If Dad shaved, then it's not Saturday.