The cost of fighting crime in the U.S. increased steadily in the period 1982 - 1999. Total spending on police, courts, and prisons can be approximated, respectively, by
?
billion dollars 
billion dollars
billion dollars
?
where t is time in years since 1980. Compute 
to two decimal places.
?
A. 0.27
B. 0.37
C. 0.32
D. 0.42
E. 0.52
Answer: B
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Solve.-9x + 5(2x - 2) = -4 - 5x
A. {
}
B. {- 1}
C. {- 
}
D. {1}
Convert 49 oz to kilograms.
a. 1.39 kg b. 1,728.4 kg c. 0.05 kg d. 1.73 kg
Apply row operations to the augmented matrix to find the solution to the linear system.
A. x = -2k + 2, y = -5k - 9, z = k, for any real number k. B. x = -2k + 1, y = -5k - 10, z = k, for any real number k. C. x = 3k + 11, y = k - 13, z = k, for any real number k. D. x = 1, y = 11, z = 1
Graphically estimate the x- and y-intercepts of the graph.
?
?
A. x-intercept: (±1, 0), (0, 0)y-intercept: (0, 0) B. x-intercept: (1, 0), (0, 0)y-intercept: (0, 0) C. x-intercept: (-1, 0), (0, 0)y-intercept: (0, 0) D. x-intercept: (0, ±1), (0, 0)y-intercept: (0, 0) E. x-intercept: (0, 1), (0, 0)?y-intercept: (0, 0)