Write the number in scientific notation.86,000
A. 8.6 × 10-5
B. 8.6 × 105
C. 8.6 × 104
D. 8.6 × 10-4
Answer: C
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Solve.12 - x - x2 > 0
A. x < 3 or x > 4 B. -4 < x < 3 C. x < -4 or x > 3 D. -3 < x < 4
Set up the definite integral that gives the area of the region bounded by the graphs.
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Krispy Kreme is considering building a franchise in a particular city. It will use a survey to determine the extent of interest among residents of the city. Which of the following procedures would be most appropriate for obtaining a statistically unbiased sample?
A. Survey a selection of people who are listed on the residential roll sheets of the city. B. Survey a random selection of customers coming out of other donut shops in the city. C. Survey a selection of people whose names are randomly chosen from the telephone directory of the target city. D. Survey a random selection of people whose names are obtained from national sales records of Krispy Kreme customers. E. none of the above procedures would be most appropriate.
Multiply.(4x - 3)2
A. 4x2 + 9 B. 16x2 + 9 C. 4x2 - 24x + 9 D. 16x2 - 24x + 9