Solve the inequality.2x + 8 + 9x < 4 + 9x + 2
A. {x 
}
B. {x 
}
C. {x 
}
D. {x 
}
Answer: B
Mathematics
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Identify where f is increasing and where f is decreasing.f(x) = 5x - 1
A. neither B. increasing: [-1, ?); decreasing: (-?, -1] C. increasing: never; decreasing: (-?, ?) D. increasing: (-?, ?); decreasing: never
Mathematics
Solve the problem.A ball is thrown vertically upward with an initial velocity of 96 feet per second. The distance in feet of the ball from the ground after t seconds is 
For what interval of time is the ball more than 80 above the ground?
A. {x ? 0.5 sec < x < 5.5 sec} B. {x ? 2.5 sec < x < 3.5 sec} C. {x ? 1 sec < x < 5 sec} D. {x ? 4 sec < x < 8 sec}
Mathematics
Find the integral.
Mathematics
Find the sum.Find the sum of the first 30 terms of the arithmetic sequence: 13, 8, 3, -2, . . .
A. -1785 B. -137 C. -1777 D. -1860
Mathematics