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Pre-Calculus 232: PSAT 2012-2013 problems

Essential Question: How does knowledge of the complex number system help me solve problems?

Objectives: SWBAT successfully solve PSAT problems.

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2. A box contains a red marble, a green marble, a yellow marble, a blue marble, and no other marbles. Two marbles are to be chosen at random from the box without replacement. If the first marble chosen is green, what is the probability that the second marble chosen will be blue?

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4. If 6xyz = 72 and xy = 3, what is the value of z?

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15. If 6xyz = 72 and xy = 3, what is the value of z?

16. A drawer contains 6 red socks, 6 white socks, 6 blue socks, and no other socks. If socks are selected at random from the drawer, what is the least number of socks that must be selected to ensure that two socks of the same color are selected?

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