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152E3-S2011 - MA 15200 1 Exam 3A Which equation of a line...

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MA 15200 Exam 3A Spring 2011 1 1) Which equation of a line is perpendicular to the line and passing through the point . 2) The frequency (in cycles per second) of a vibrating string varies inversely as its length. Suppose a piano string 2 feet long vibrates 240 cycles per second. What would be the frequency of a string 5 feet long? A 64 cycles per second B 80 cycles per second C 24 cycles per second D 600 cycles per second E 96 cycles per second 3) If
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MA 15200 Exam 3A Spring 2011 2 4) Which pairs of functions, , are inverses? 5) Graph the function in the coordinate system provided. Which statement about the graph is false ? A The y -intercept is 1. B The domain of the function is . C The graph is never in quadrant III. D The graph is always increasing. E The graph contains the point (3, 8). 6) Convert to equivalent exponential form.
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MA 15200 Exam 3A Spring 2011 3 7) Evaluate this logarithmic expression: 8) The percentage of first year college women who agreed with the statement, ‘The
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